Quan D.-L., Wang L.-Y. & Tan Y.-H. 2025: Chisocheton megathyrsus (Meliaceae), a long-overlooked new species from Yunnan, China. — Ann. Bot. Fennici 62: 333–340, doi.org/10.5735/085.062.0153. | EPUB
AbstractChisocheton megathyrsus Y.H.Tan & D.L.Quan sp. nova (Meliaceae) is described and illustrated from Yunnan, China. Morphologically, it belongs to sect. Chisocheton ser. Paniculati. It is characterised by extremely long inflorescences (up to 2.5 m), subsessile glomerulate flowers, and large puberulent capsules (up to 10 cm in diameter). Comparative analysis shows that it differs from its morphologically closest species, C. dysoxylifolius, in multiple traits: longer pubescent leaf rachis and petiolules, larger pubescent leaflets with more secondary veins, longer inflorescence branches and bracts, a distinct indumentum of the staminal tube and style, glabrous anthers, and cupulate disk. Morphological differences between the new species and C. cumingianus subsp. balansae are also outlined. Pollen morphology of C. megathyrsus is documented with SEM figures.
Ma X.-D., Yin Y.-Q., Xi H.-C. & Shen J.Y. 2025: Vincetoxicum jinshaense (Apocynaceae), a new species from Yunnan, China. — Ann. Bot. Fennici 62: 327–331, doi.org/10.5735/085.062.0152. | EPUB
AbstractVincetoxicum jinshaense X.D. Ma & J.Y. Shen (Apocynaceae) is described as a new species from Luquan, Yunnan, China. It morphologically resembles V. yunnanense, V. secamonoides and V. rotundifolium, but differs from them in many features of the leaves and flowers. Based on the IUCN categories and criteria, and considering imminent threats to the species, it is assessed as Critically Endangered (CR).
Parihar A. & Hembrom M.E. 2025: Validation of the name Gymnopilus crocias (Berk. & Broome) Singer nom. inval. (Agaricales, Strophariaceae). — Ann. Bot. Fennici 62: 325–326, doi.org/10.5735/085.062.0151. | EPUB
Abstract
The name Gymnopilus crocias (Berk. & Broome) Singer nom. inval. (Agaricales, Strophariaceae) is validated in accordance with the International Code of Nomenclature (ICN).
Huang Z.-J. 2025: Lectotypification of Impatiens chlorosepala Hand.-Mazz. (Balsaminaceae), with clarification of its type locality. — Ann. Bot. Fennici 62: 321–324, doi.org/10.5735/085.062.0150. | EPUB
Abstract
A lectotype is designated for Impatiens chlorosepala Hand.-Mazz. (Balsaminaceae) based on the protologue and type material, and the type locality is clarified.
Rezaei E., Saeidi H. & Negaresh K. 2025: Psephellus avajiqensis (Asteraceae, Cardueae), a new species from West Azerbaijan Province, NW Iran. — Ann. Bot. Fennici 62: 315–320, doi.org/10.5735/085.062.0149. | EPUB
AbstractPsephellus avajiqensis Negaresh sp. nova (Asteraceae) is described and illustrated from West Azerbaijan Province, NW Iran. It resembles P. xanthocephalus subsp. xanthocephalus but differs from it by having a densely greyish-floccose-tomentose indumentum on both sides of leaves; undivided basal and lower cauline leaves; oblanceolate and wider median cauline leaves; hemispherical and wider involucres; denticulate and shiny white appendages; white flowers; shorter central floret; purplish achenes; and longer pappus. The chromosome number of P. avajiqensis, counted from root tips, is 2n = 2x = 30.
Nopporncharoenkul N. & Limtaropas C. 2025: Kaempferia grandis (Zingiberaceae), a new species from Thailand. — Ann. Bot. Fennici 62: 307–314, doi.org/10.5735/085.062.0148. | EPUB
AbstractKaempferia grandis Noppornch., a new species belonging to subgen. Kaempferia and endemic to Kanchanaburi Province, southwestern Thailand, is described and illustrated. It can be easily recognised by its 1–4 leafy shoots on each rhizome; the leafy shoots being adpressed to the substrate and consisting of a solitary leaf and inflorescence; broadly ovate to suborbicular leaf blade, which is the largest of any species in subgen. Kaempferia; and the inflorescence being enclosed by a leaf sheath and a bladeless sheath. Detailed photographs of plants and dissected flowers as well as information on phenology, distribution and habitat are provided, as well as an identification key to the species of Kaempferia subgen. Kaempferia in Thailand.
Kırcalı T., Uzun S., Çerkez C., Akbaş K. & Çatav Ş.S. 2025: The interplay of gibberellin, nitric oxide and reactive oxygen species metabolism in smoke-induced seed dormancy release. — Ann. Bot. Fennici 62: 295–306, doi.org/10.5735/085.062.0147. | EPUB
Abstract
The mechanisms of action of smoke chemicals, karrikins (KARs) and cyanohydrins in breaking seed dormancy have received increased attention in recent years. In this work, we sought to investigate the function of gibberellin (GA), nitric oxide (NO), and reactive oxygen species (ROS) metabolism in the dormancy release of karrikinolide (KAR1)- and/or cyanide-sensitive seeds of three Mediterranean midland species. Seeds of Barbarea duralii (Brassicaceae; both KAR1- and cyanide-sensitive), Turritis laxa (Brassicaceae; cyanide-sensitive) and Verbascum cariense (Scrophulariaceae; KAR1-sensitive) were exposed to gibberellic acid (GA3), H2O2, sodium nitroprusside and acidified nitrite treatments. A GA biosynthesis inhibitor (paclobutrazol), a NO scavenger (carboxy-PTIO), and a NADPH oxidase inhibitor (diphenyleneiodonium) were also used in the presence of KAR1 or cyanohydrin mandelonitrile. Our results showed that cyanide-sensitive B. duralii and T. laxa seeds responded to all GA3, NO and H2O2 treatments, whereas KAR1-sensitive V. cariense seeds responded only to GA3. Moreover, GA biosynthesis was necessary for the stimulatory effects of both KAR1 and cyanide. The data also suggest that KAR1-promoted germination may depend on NADPH oxidase activity and that NO metabolism was involved in cyanide-mediated dormancy release. Our study provides evidence for an interplay between GA, ROS and NO metabolism in smoke-induced dormancy alleviation. However, the observed mechanisms of action differed depending on the sensitivity of the seeds to KAR1 or cyanide.
Idrees M. & Shaw J.M.H. 2025: Thesium hiernianum, a replacement name for the illegitimate T. strigulosum Welw. ex Hiern (Santalaceae). — Ann. Bot. Fennici 62: 291–293, doi.org/10.5735/085.062.0146. | EPUB
AbstractThesium hiernianum Idrees & J.M.H. Shaw, nom. nov. (Santalaceae) is proposed to replace the illegitimate T. strigulosum Welw. ex Hiern, a later homonym of T. strigulosum A.DC.
Bhattacharyya S. & Singh S.K. 2025: Lectotypification of six names in Artemisia (Asteraceae). — Ann. Bot. Fennici 62: 281–289, doi.org/10.5735/085.062.0145. | EPUB
AbstractArtemisia (Asteraceae) is a cosmopolitan genus with about 514 species worldwide. While working on the Flora of Himachal Pradesh, we found that the names A. incisa Pamp., A. indica Willd., A. macrocephala Jacquem. ex Besser, A. minor Jacquem. ex Besser, A. myriantha Wall. ex Besser, and A. roxburghiana var. purpurascens (Jacquem. ex Besser) Hook.f. needed typification. To ensure correct application of these names, we designate lectotypes and provide their images here.
Çeçen Ö., Balos M.M. & Yıldırım H. 2025: Biarum gulsenianum (Araceae), a new species from central Turkey. — Ann. Bot. Fennici 62: 273–279, doi.org/10.5735/085.062.0144. | EPUB
Abstract
Here we describe Biarum gulsenianum Yıldırım, Çeçen & Balos (Araceae), a new species from Karaman Province in central Turkey. Although morphologically close to B. rifatii, it differs by having a shorter and narrower, cylindrical-oblong to oblong-ovoid (vs. globose-oblong) spathe tube, the inner surface of which ranges from whitish to greenish cream (vs. uniformly shiny reddish purple). The appendix is also distinctly shorter, and B. gulsenianum bears 2–3 rows of staminodes (absent in B. rifatii). Both species are unusual within the genus, as they flower in summer rather than in autumn.
Galalaey A.M.K., Shaban M.A.H., Salim M., Alkay T.S., Çeçen C. & Balos M.M. 2025: Biarum alka-galalicum (Araceae), a new species from northern Iraq. — Ann. Bot. Fennici 62: 263–271, doi.org/10.5735/085.062.0143. | EPUB
AbstractBiarum alka-galalicum Balos, C. Çeçen, Galalaey & Shaban (Araceae) is described as a new species from the Barzan region in Erbil, northern Iraq. It resembles B. carduchorum, but is smaller, with fibrillary cataphylls, fewer leaves, a smaller and narrower spathe limb, a thicker, long-stalked spadix appendix that is shorter than the spathe and rounded at the apex, and a warty ovary. Based on IUCN categories and criteria and imminent threats to B. alka-galalicum, its conservation status is assessed as Critically Endangered (CR).
Keskin M., Sonay V. & Balos M.M. 2025: Trigonella coerulescens subsp. harputensis (Fabaceae), a new taxon from Elazığ, Turkey. — Ann. Bot. Fennici 62: 257–261, doi.org/10.5735/085.062.0142. | EPUB
AbstractTrigonella coerulescens subsp. harputensis M. Keskin, Sonay & Balos (sect. Biebersteinianae) is described as a new taxon from Elazığ, Turkey. It closely resembles subsp. coerulescens but differs, for example, in its blackish-purple bracts, longer petioles, larger leaflets, 10–18-flowered inflorescences and narrowly elongate-lanceolate calyx teeth.
Shu N. & Li R. 2025: Coelogyne raizadae and C. ruidianensis, two synonyms of C. longipes (Orchidaceae). — Ann. Bot. Fennici 62: 251–255, doi.org/10.5735/085.062.0141. | EPUB
Abstract
The names Coelogyne raizadae S.K. Jain & S. Das and C. ruidianensis Ormerod are treated as heterotypic synonyms of C. longipes Lindl. (Orchidaceae).
Eker İ., Şahin B. & Bouh A.M. 2025: Allium cankiriense (Amaryllidaceae), a new species of sect. Codonoprasum from central Anatolia, Turkey. — Ann. Bot. Fennici 62: 245–250, doi.org/10.5735/085.062.0140. | EPUB
AbstractAllium cankiriense Eker & B.Şahin sp. nova (Amaryllidaceae) is described as a new species from the province of Çankırı, central Anatolia, Turkey. It shares some morphological similarities with A. kastambulense and A. rupestre but is clearly distinguished from them, mainly by its coriaceous inner tunics, clustered bulbs and smaller capsules; there are also several other differences. Based on IUCN criteria and categories, its conservational status is assessed to be Critically Endangered (CR).
Yao X., Hu X., Ye M.-S., Xu S.-S., Chen Q. & Mou F.-J. 2025: Hedychium chrysoleucum (Zingiberaceae) resurrected, with the first record for China. — Ann. Bot. Fennici 62: 237–244, doi.org/10.5735/085.062.0139. | EPUB
Abstract
Based on field observations, herbarium studies, and morphological/cytological analyses, we resurrect Hedychium chrysoleucum (Zingiberaceae) as a distinct species, resolving its long-standing classification as a variety or a synonym of H. coronarium. We report it as new to China, where it was found in southwestern Yunnan, in its easternmost location. A comprehensive morphological description and diagnostic illustrations of H. chrysoleucum, and comparisons with two morphologically similar species, H. coronarium and H. flavescens, are provided. Hedychium chrysoleucum can be distinguished from these two species by having a shorter leafy shoot, narrower labella and lateral staminodes with yellow patches at the bases, and by flowering year-round. With perpetual blooming, a rare trait for the genus, and dwarf stature, H. chrysoleucum has potential as parent material for breeding ornamental Hedychium cultivars.
Wang Y., Ma Z., Yang B., Shui Y.-M. & Tan Y.-H. 2025: Breynia mirabilis (Phyllanthaceae), a new cauliflorous pachycaul species from Yunnan, China. — Ann. Bot. Fennici 62: 229–235, doi.org/10.5735/085.062.0138. | EPUB
AbstractBreynia mirabilis Y.H. Tan, Y.E. Wang & Z.X. Ma (Phyllanthaceae), a new cauliflorous species is described from the tropical monsoon rainforest occurring in humid ravines of south-eastern Yunnan, China, and diagnosed in comparison with B. beillei. The new species is placed in subg. Sauropus and is readily recognised by its unique monopodial pachycaul habit and cauliflorous, racemose inflorescence. It differs from B. beillei in its shorter inflorescences and pedicels, as well as yellow to light green staminate flowers with unswollen calyx lobes vs. pinkish staminate flowers with swollen calyx lobes mottled red. We discuss the floristic association of B. mirabilis and two other cauliflorous pachycaul species and especially their adaptation to the rainforest environment of the Pan-Gulf of Tonkin flora.
Zeraatkar A. 2025: Erysimum tashkense (Brassicaceae), a new species from Iran. — Ann. Bot. Fennici 62: 223–228, doi.org/10.5735/085.062.0137. | EPUB
AbstractErysimum tashkense Zeraatkar (Brassicaceae) is described as a new species from the Fars Province, Iran. It morphologically resembles E. polatschekii due to its caespitose growth form, short stature and glabrous petals, but differs from it mainly in pedicel, style and sepal length, leaf shape, petal shape and colour, fruit orientation and trichome types on various organs. Based on IUCN categories and criteria and imminent threats to the species, its conservation status is tentatively assessed as Critically Endangered (CR).
Maalouf R. & Balos M.M. 2025: Allium beitchlelaense (Amaryllidaceae), a new species in sect. Codonoprasum from Lebanon. — Ann. Bot. Fennici 62: 215–221, doi.org/10.5735/085.062.0136. | EPUB
AbstractAllium beitchlelaense Maalouf & Balos (Amaryllidaceae), a new species in sect. Codonoprasum, is described from the North Governorate of Lebanon. Allium beitchlelaense is morphologically similar to A. glumaceum and A. elifadae, but differs in several characters, including the bulb tunics and the absence of a stem neck, the presence of bulbils, the inflorescence structure, broader spathe valves, the structure and colour of the perigone, anther colour, the vesicular-tuberculate texture of the upper half of the ovary, and capsule and seed morphology. A detailed morphological description, photographs and notes on the habitat of A. beitchlelaense are provided. Based on the IUCN criteria and categories, and considering imminent threats to the species, its conservation status is assessed as “Critically Endangered” (CR).
Alauddin S., Brown A.P. & Turner I.M. 2025: Psychotria acutifolia (Rubiaceae), a new species from Borneo to accommodate Ridley’s ‘P. insignis’. — Ann. Bot. Fennici 62: 211–214, doi.org/10.5735/085.062.0135. | EPUB
AbstractPsychotria acutifolia Salsa. & I.M. Turner (Rubiaceae) is described as a new species. Specimens of it were originally annotated as ‘Psychotria insignis’ by H. N. Ridley, but this name was never published. The species, as described and illustrated here, is only known with certainty from Sarawak, Malaysia, on the island of Borneo.
Gao G. & Chen X.Y. 2025: Rheum chagyaensis (Polygonaceae), a new species from the Hengduan Mountains, Xizang, China. — Ann. Bot. Fennici 62: 205–209, doi.org/10.5735/085.062.0134. | EPUB
AbstractRheum chagyaensis G. Gao & X.Y. Chen (Polygonaceae) is described as a new species from Xizang, China. It is morphologically most similar to R. spiciforme and R. rhomboideum, but has a shorter, creeping panicle that lies under the leaves and bears only 5–10 flowers, larger leaves, and it grows at higher elevations, 5200–5600 m a.s.l. on alpine scree slopes. We observed fewer than 120 individuals at the type locality, and based on IUCN criteria, its conservation status is assessed as Vulnerable (V).
Kumari D. & Prabhukumar K.M. 2025: Lectotypification of two names in Impatiens (Balsaminaceae). — Ann. Bot. Fennici 62: 201–204, doi.org/10.5735/085.062.0133. | EPUB
Abstract
Lectotypes are designated for the names Impatiens brachycentra Kar. & Kir. and I. lemannii Hook.f. & Thomson.
Parihar A. & Hembrom M.E. 2025: Diplodia peckiana, a replacement name for D. polygonicola Peck (Botryosphaeriaceae). — Ann. Bot. Fennici 62: 199, doi.org/10.5735/085.062.0132. | EPUB
Abstract
We propose a new name Diplodia peckiana A. Parihar & Hembrom to replace the illegitimate D. polygonicola Peck, which is a later homonym of D. polygonicola Hollós.
Athira S. & Maya C.N. 2025: Lectotypification of Arenaria neelgherrensis and Drymaria villosa (Caryophyllaceae). — Ann. Bot. Fennici 62: 195–198, doi.org/10.5735/085.062.0131. | EPUB
Abstract
A lectotype is designated for Arenaria neelgherrensis Wight & Arn. based on the protologue and type material. A previous incorrect lectotypification of Drymaria villosa Schltdl. & Cham. is revised and a new lectotype is designated.
Prabhukumar K.M., Kumar N. & Rana T.S. 2025: Litsea robiana (Lauraceae), a new species from southern Western Ghats, India. — Ann. Bot. Fennici 62: 189–194, doi.org/10.5735/085.062.0130. | EPUB
AbstractLitsea robiana K.M.P. Kumar (Lauraceae) is described as a new species in sect. Cylicodaphne from the evergreen forests of Avalanchi, Tamil Nadu, India. It morphologically resembles L. wightiana and L. floribunda, but differs from them, for example, by having much shorter brachyblasts, six (vs. four) involucral bracts and longer fruit pedicels.
Kumar R., Dkhar J. & Kumar V. 2025: Cremanthodium kalaiselviae (Asteraceae), a new species from the Indian Himalaya. — Ann. Bot. Fennici 62: 183–188, doi.org/10.5735/085.062.0129. | EPUB
AbstractCremanthodium kalaiselviae Vik. Kumar & Rahul Kumar (Asteraceae) is described as a new species from Arunachal Pradesh, Indian Himalayan region. It belongs to ser. Campanulata of sect. Cremanthodium, and resembles C. wardii and C. campanulatum, but differs from them in the cordate to cordate-reniform leaves, tomentose, pale yellow phyllaries, and larger disc florets.
Koponen T. 2025: Notes on Philonotis (Batramiaceae, Bryophyta) 18. Ranges of P. calcarea and P. seriata, and new synonyms of P. fontana. — Ann. Bot. Fennici 62: 169–181, doi.org/10.5735/085.062.0128. | PDF
Abstract
Records of Philonotis calcarea, P. fontana, P. lutea and P. seriata (Bartramiaceae) in section Philonotis in W. Mitten’s Musci Indiae orientalis are revisited and discussed. The specimens of P. calcarea and P. seriata available from Southeast Asia are reidentified, and relevant literature reports are reviewed. No correctly identified specimens of P. calcarea and P. seriata were found from the western and eastern Himalaya, China, Japan or Korea. Hence, the range of P. calcarea extends from Greenland through Europe to Afghanistan, Kazakhstan, Kyrgyzstan and Uzbekistan and to the Altai Mountains in Asia. Philonotis seriata ranges from Greenland to the Caucasus area and has disjunctions in the Altai Mountains. The names Bryum zonatum Schimp., Philonotis crassinervis Wils., P. mongolica Broth. nom. inval. in synon. and P. trachyphylla Dixon & Badhw. are synonymized with P. fontana (Hedw.) Brid. The misidentification of these taxa is due to the modified leaves of male plants, in which the leaf cells may have a central papilla. The records of P. yezoana from the Himalayas, Europe (Finland) and Greenland are based on male plants of P. fontana.
Baro D. & Bawri A. 2025: Rungia tinsukiaensis (Acanthaceae), a new species from Assam, India. — Ann. Bot. Fennici 62: 165–168, doi.org/10.5735/085.062.0127. | EPUB
AbstractRungia tinsukiaensis D. Baro & Bawri (Acanthaceae) is described and illustrated as a new species from Assam, northeastern India. It morphologically resembles R. burmanica and R. fangdingiana in being a perennial herb with opposite, decussate phyllotaxy, but differs from them mainly by having a pubescent stem, elliptic to oval, obovate leaves with an apiculate to acuminate apex and a pubescent abaxial leaf surface, and by lacking cystoliths.
Chakrabarty T. & Kumar A. 2025: Revisiting the taxonomy of Myanmar endemics Cinnamomum lucens and C. tavoyanum (Lauraceae). — Ann. Bot. Fennici 62: 161–164, doi.org/10.5735/085.062.0126. | EPUB
AbstractCinnamomum lucens Miq. is synonymised under C. tavoyanum Meisn. and the latter name is lectotypified. Cinnamomum myanmarense Chakrab. & Anand Kumar, nom. nov. is proposed for C. tavoyanum sensu Kosterm., replacing C. sulphuratum Nees var. oblongifolium Nees, and this name is also lectotypified.
Kolanowska M. & Szlachetko D.L. 2025: Importance of type specimens for understanding species boundaries: re-evaluation of the identity of Myoxanthus ceratothallis (Orchidaceae). — Ann. Bot. Fennici 62: 151–160, doi.org/10.5735/085.062.0125. | EPUB
Abstract
The identity of Myoxanthus ceratothallis (Orchidaceae) is revised using morphological data. Based on petal and lip morphology, Pleurothallis longipes is transferred to Myoxanthus, and the combination Myoxanthus longipes (Körn.) Kolan. & Szlach. comb. nova is proposed. Myoxanthus alex-hirtzii Kolan. & Szlach. sp. nova from Ecuador is described as part of the M. ceratothallis complex. The importance of herbarium collections and classical herbarium taxonomy in species delimitation is discussed, and notes on the sectional division of Myoxanthus are provided.
Kovalchuk A. 2025: Nomenclatural notes on conifer names published by George Gordon and Christian von Steven. — Ann. Bot. Fennici 62: 139–150, doi.org/10.5735/085.062.0124. | PDF
Abstract
A literature survey conducted to establish the date of valid publication of the name Pinus pithyusa revealed a series of publications on conifer plants authored by George Gordon, published during 1841 and 1842 in the horticultural periodical Gardeners’ Chronicle. The series seems to be largely overlooked by botanical scholars. Names appearing in these contributions, their status and current application are reviewed here. The following new names and combinations were validly published in this series: Pinus californica Gordon, P. pithyusa Gordon, P. hispanica Gordon, P. romana Gordon, P. taurica (Loudon) Gordon, P. chilghoza Gordon, Abies khutrow (Royle ex Turra) Gordon, A. morinda Gordon and Juniperus squamosa Gordon. Of these, P. pithyusa is the only name requiring nomenclatural adjustments. The history of the discovery of P. pithyusa and its introduction to Britain is reviewed in connection with the first valid publication of the name. It is also shown that Juniperus marschalliana, published by Christian von Steven in 1856, is the earlier legitimate name for the taxon currently known as J. deltoides. The names Pinus pithyusa Gordon and J. marschalliana Steven are typified and the combination Pinus brutia var. pithyusa (Gordon) Silba ex Kovalchuk, comb. nova is proposed.
Hoang S.T., Xi H.-C., Shen J.-Y. & Wang W.-G. 2025: Microchirita baolamensis (Gesneriaceae), a new species from Vietnam. — Ann. Bot. Fennici 62: 135–138, doi.org/10.5735/085.062.0123. | EPUB
AbstractMicrochirita baolamensis T.S. Hoang, W.G. Wang & H.C. Xi (Gesneriaceae) is described and illustrated as a new species from Vietnam. It resembles M. involucrata and M. rupestris, but differs from them by its cristate inflorescence, purple corolla tube with yellow stripes and eglandular pubescence, and free anthers. It further differs from M. involucrata by a partly pubescent ovary and an eglandularly pubescent style. Based on IUCN categories and criteria, the species is assessed as Critically Endangered (CR).
Inceer H. 2025: Lectotypification of Chrysanthemum sipikorense and Pyrethrum sorbifolium (Anthemideae, Asteraceae). — Ann. Bot. Fennici 62: 131–134, doi.org/10.5735/085.062.0122. | EPUB
Abstract
The names Chrysanthemum sipikorense Bornm. and Pyrethrum sorbifolium Boiss. (Anthemideae, Asteraceae) are lectotypified herein. The lectotype of C. sipikorense is deposited at JE and that of P. sorbifolium at G-BOIS.
Ke Z.W., Liu Q. & Gan Q.L. 2025: Sabia wudangensis (Sabiaceae), a new species from Hubei Province, China. — Ann. Bot. Fennici 62: 127–130, doi.org/10.5735/085.062.0121. | EPUB
AbstractSabia wudangensis Q.L. Gan & Z.W. Ke (Sabiaceae) is described and illustrated as a new species from western Hubei Province, central China. It morphologically resembles S. paniculata, S. limoniacea and S. swinhoei, but differs from them by having green twigs; narrow oblong-elliptic or narrowly elliptic-obovate leaves with dorsally glabrous laminae; a shorter petiole; an inflorescence pubescent with curved hairs; petals without purplish red stripes; 5 or 4 stamens that lack purplish red spots; and an endocarp that has 2–3 marginal foveolate cavity lines, concave surfaces and lacking a protruding midrib.
Idrees M. & Shaw J.M.H. 2025: Ranunculus sinominor Idrees & J.M.H. Shaw, a replacement name for R. minor (L. Liu) W.T. Wang (Ranunculaceae). — Ann. Bot. Fennici 62: 125–126, doi.org/10.5735/085.062.0120. | EPUB
AbstractRanunculus sinominor Idrees & J.M.H. Shaw nom. nov. (Ranunculaceae), is proposed as a replacement name for R. minor (L. Liu) W.T. Wang, a later homonym of R. minor J.K. Fisch.
Mai T.C, Trần T.T.N., Nguyễn T.D., Mai Đ.T. & Nguyễn D.Đ. 2025: Curcuma daknongensis (Zingiberaceae), a new species from southern Vietnam. — Ann. Bot. Fennici 62: 121–124, doi.org/10.5735/085.062.0119. | EPUB
AbstractCurcuma daknongensis D.D. Nguyen sp. nova (Zingiberaceae) is described and illustrated from Vietnam. It belongs to the subgenus Curcuma and resembles C. rangjued, from which it differs by having more branched rhizomes; a smaller, white coma often with a paler pink tip; a cream white calyx; a shorter labellum; a glabrous corolla lobe; and a longer filament.
Keskin M., Balos M.M. & Sonay V. 2025: Trigonella hasanakanii (Fabaceae), a new species from Turkey. — Ann. Bot. Fennici 62: 115–120, doi.org/10.5735/085.062.0118. | EPUB
AbstractTrigonella hasanakanii M. Keskin, Balos & Sonay sp. nova (Fabaceae) of sect. Verae is described from Şanlıurfa Province, southeastern Turkey. It morphologically resembles the variable T. caelesyriaca, but differs from it mainly in flower and fruit characteristics.
Özüdoğru B. & Eker İ. 2025: Allium sadikerikii (Amaryllidaceae), a new species of sect. Codonoprasum from central Anatolia, Turkey. — Ann. Bot. Fennici 62: 109–113, doi.org/10.5735/085.062.0117. | EPUB
AbstractAllium sadikerikii Eker & Özüdoğru sp. nova (Amaryllidaceae) is described from the province of Kırşehir, central Anatolia, Turkey. It is morphologically similar to A. paniculatum in having a pink perigone, but it differs from the latter by perigone shape, included stamens, structure and colour of outer tunics, length of spatha, length and structure of scape, pedicel length in flower, and leaf characteristics. Based on IUCN criteria, its conservation status is assessed to be Critically Endangered (CR).
Puliyakode S., Goswami S. & Dash S.S. 2025: Lectotypification of five names in Rungia (Acanthaceae). — Ann. Bot. Fennici 62: 101–107, doi.org/10.5735/085.062.0116. | EPUB
Abstract
Lectotypes are designated for the names Rungia arnottiana Wight, R. beddomei C.B. Clarke, R. chinensis Benth., R. congoensis C.B. Clarke and R. dimorpha S. Moore (Acanthaceae).
Deroliya P.K. & Meena S.L. 2025: A new combination and lectotypification in Indian Ayenia (Malvaceae). — Ann. Bot. Fennici 62: 95–99, doi.org/10.5735/085.062.0115. | EPUB
AbstractAyenia elegans (Ridl.) Deroliya & S.L. Meena, comb. nova, (Malvaceae) is proposed here as a replacement name for A. pilosa (Roxb.) T.K. Paul, which is a later homonym of A. pilosa Cristóbal. A second-step lectotype is designated for the name Byttneria elegans Ridl. and lectotypes are designated for the names B. herbacea Roxb. and B. pilosa var. pellita Gagnep.
Kumar V. & Agrawala D.K. 2025: Hemipilia himalayensis (Orchidaceae), a new species from Arunachal Pradesh, India. — Ann. Bot. Fennici 62: 89–93, doi.org/10.5735/085.062.0114. | EPUB
AbstractHemipilia himalayensis Vik. Kumar & Agrawala (Orchidaceae) is described and illustrated as a new species from Dibang Valley of Arunachal Pradesh, India. It morphologically resembles H. chusua, H. nana, H. puberula and H. graminifolia, but differs from them in the plant height, number and shape of leaves, number of flowers in inflorescence, lip structure, and length of the spur.
Zhang S.Y., Hu Y.F., Zhang W., Zhu K.R., Chu P.C. & Shao J.W. 2025: Oxalis anhuiensis (Oxalidaceae), a new species from Anhui, China. — Ann. Bot. Fennici 62: 81–88, doi.org/10.5735/085.062.0113. | EPUB
AbstractOxalis anhuiensis S.Y. Zhang, Y.F. Hu & J.W. Shao (Oxalidaceae), is described as a new species from the Dabie Mountains, Anhui Province, eastern China. It is morphologically similar to the widely distributed O. stricta but differs from it by having wider leaves and longer petals with red stripes at the base. Oxalis anhuiensis also resembles the North American endemic O. grandis, from which it differs by having green vs. purple leaf margins, pilose vs. glabrous leaf surfaces, and non-septate vs. partly septate hairs on the whole plant body. The chloroplast genome of O. anhuiensis was sequenced and mapped, and the molecular phylogenetic analysis placed the species in sect. Corniculatae.
Quan D.L., Yang B. & Tan Y.H. 2025: Lysimachia brevicaulis (Primulaceae), a new species from limestone karst of northern Laos. — Ann. Bot. Fennici 62: 75–80, doi.org/10.5735/085.062.0112. | EPUB
AbstractLysimachia brevicaulis Y.H. Tan & D.L. Quan (Primulaceae) is described and illustrated as a new species from a limestone karst in Oudomxay Province, Laos. It is tentatively placed in the subgenus Idiophyton. The new species is morphologically close to L. verbascifolia but can be distinguished from it by its underdeveloped stem, smaller leaf blades, solitary flowers, villous calyx, abaxially reddish brown and puberulent corolla, shorter anthers and styles, and green fruits.
Gyeltshen P., Phuentsho, Dhimal K.P. & Dorji N. 2025: A new variety of Musa balbisiana (Musaceae) from Bhutan. — Ann. Bot. Fennici 62: 67–73, doi.org/10.5735/085.062.0111. | EPUB
Abstract
There are seven varieties of Musa balbisiana (Musaceae) in the South and Southeast Asia. Here, Musa balbisiana var. bhutanensis P. Gyeltshen, is described and illustrated as a new variety from central Bhutan. It resembles M. balbisiana var. balbisiana and var. elavazhai, but differs from them by having a longer peduncle, oblong to broadly ovate bracts, a creamy anther with pink tinge, and shorter and more numerous seeds per fruit. The conservation status of the new variety is assessed as Data Deficient (DD).
Kolagani C. 2025: Persicaria tirathgarhensis (Polygonaceae), a new species from Chhattisgarh State, India. — Ann. Bot. Fennici 62: 63–65, doi.org/10.5735/085.062.0110. | EPUB
AbstractPersicaria tirathgarhensis K.C. Mohan (Polygonaceae) is described and illustrated as a new species from Bastar District, Chhattisgarh State, India. It morphologically resembles P. chinensis, but differs from it by having a wingless petiole, ciliate ochreae, smaller heads, short pedicel, short perianth lobes, fewer stamens and two styles, and small, biconvex achenes.
Kumar A., Ahamed M. & Sharma Y.P. 2025: Amanita saproalba (Amanitaceae), a new species from Jammu and Kashmir, India. — Ann. Bot. Fennici 62: 55–62, doi.org/10.5735/085.062.0109. | EPUB
AbstractAmanita saproalba A. Kumar & Y.P. Sharma sp. nova (Amanitaceae) is described from Jammu and Kashmir, India, based on molecular (nrLSU) and morphological evidence. It belongs to Amanita subg. Lepidella sect. Lepidella stirps Vittadinii, and is closely related to A. orientisororia from China, from which it differs by its appendiculate pileus margins, larger basidiomata, small to moderately coarse, subfibrillose pyramidal warts on the pileus, and a stipe covered with coaxially arranged, recurved squamules that bruise brownish. An identification key to the species of A. sect. Lepidella known from India is provided.
Ue-aree P., Damthongdee A., Wiya C. & Chaowasku T. 2025: Dasymaschalon buengkanicum (Annonaceae), a new species from northeastern Thailand. — Ann. Bot. Fennici 62: 49–53, doi.org/10.5735/085.062.0108. | EPUB
AbstractDasymaschalon buengkanicum Uearee, Damth. & Chaowasku (Annonaceae), a new species from northeastern Thailand is described and illustrated. It is morphologically most similar to D. lomentaceum, but differs from it by having sparser indumentum on young twigs, thicker and wider leaf blade, longer flowering pedicel and petals, dissimilar colour of petals at maturity, and smaller monocarp constrictions to monocarp width ratio.
Kumar R., Dkhar J. & Kumar V. 2025: Cremanthodium dibangii (Asteraceae), a new species, and a new record of C. oblanciligulatum from Arunachal Pradesh, India. — Ann. Bot. Fennici 62: 39–47, doi.org/10.5735/085.062.0107. | EPUB
AbstractCremanthodium dibangii Vik. Kumar & Rahul Kumar (Asteraceae, Senecioneae) is described and illustrated as a new species from Dibang Valley District in Arunachal Pradesh, India. It morphologically resembles C. reniforme, but differs from it by several characters of leaves, involucres, and ray laminae, as well as the style length of ray florets, etc. We additionally report C. oblanciligulatum for the first time from India, collected from Tawang, Arunachal Pradesh. It is a threatened species and until now was only known from China. An identification key to Indian species of Cremanthodium sect. Cremanthodium is provided.
Chakrabarty T., Kumar A. & Ghoshal P.P. 2025: Notes on the taxonomic status of Litsea nigrescens (Lauraceae). — Ann. Bot. Fennici 62: 35–37, doi.org/10.5735/085.062.0106. | EPUB
AbstractLitsea nigrescens Gamble is recognized and treated as a variety of L. oleoides (Meisn.) Hook.f. It differs from L. oleoides only by having predominantly alternate leaves which in the latter are opposite.
Turner I.M. 2025: Adjustments to the nomenclature and typification of Dolichandrone falcata (Bignoniaceae). — Ann. Bot. Fennici 62: 31–33, doi.org/10.5735/085.062.0105. | EPUB
AbstractDolichandrone falcata Seem. (Bignoniaceae) is shown to be the correct name for the tree species native to India. A lectotype is designated here.
Tavilla G. 2025: Revisiting the typification of the Linnaean name Allium fistulosum (Amaryllidaceae). — Ann. Bot. Fennici 62: 27–29, doi.org/10.5735/085.062.0104. | EPUB
Abstract
The typification of the Linnaean name Allium fistulosum (Amaryllidaceae) is revised by superseding the previous proposal (neotype). Due to the existing original material (Dodoens’ illustration), the neotypification is not correct according to Art. 9.13 of the International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code). In addition, an herbarium specimen kept at S-LINN is designated as epitype to ensure the correct application of the name.
Binzet R. 2025: Onosma zaferkayae (Boraginaceae), a new species from eastern Anatolia, Turkey. — Ann. Bot. Fennici 62: 19–26, doi.org/10.5735/085.062.0103. | EPUB
AbstractOnosma zaferkayae Binzet (Boraginaceae, Lithospermeae) is described and illustrated as a new species from eastern Anatolia, Turkey. It morphologically resembles O. thracica and O. demirizii, but has taller stems, larger basal and cauline leaves, longer pedicels, larger bracts, shorter and golden yellow corollas, and larger nutlets. Based on IUCN criteria, the conservation status of O. zaferkayae is assessed to be Critically Endangered (CR B1(i)B2ab(ii,iii)).
Keskin M., Sonay V. & Balos M.M. 2025: Colchicum akanii (Colchicaceae), a new long-necked species from Turkey. — Ann. Bot. Fennici 62: 11–17, doi.org/10.5735/085.062.0102. | EPUB
AbstractColchicum akanii Sonay, M. Keskin & Balos (Colchicaceae) from Elazığ, eastern Turkey, is described as a new species. It is morphologically similar to C. balansae and C. macrophyllum, but differs from them mainly by the structure of the corm and outer and inner tunics, cataphyll colour, leaf shape and size, tessellate perigon, filament that is much shorter than tepals, as well as capsule and seed structure. Following the IUCN criteria, we assessed C. akanii to be Critically Endangered (CR).
Floden A. 2025: Lectotypification of eleven names in Polygonatum (Asparagaceae). — Ann. Bot. Fennici 62: 1–9, doi.org/10.5735/085.062.0101. | EPUB
Abstract
Eleven names in Polygonatum are lectotypified, two additional names have additional isotypes reported, and discussions of taxonomy are provided for eight species as part of an ongoing revision of the genus.