Bulbophyllum annamense Sieder & Kiehn 2009
Creators: name: Truong, Ba Vuong
name: Averyanov, Leonid V.
name: Maisak, Tatiana V.
name: Dang, Minh Quan
name: Nguyen, Van Canh
name: Amlser, Roland
name: Nguyen, Quoc Bao
name: Dang, Van Son
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Bulbophyllum
Bulbophyllum annamense

description: 1. Bulbophyllum annamense (Garay) Sieder & Kiehn (2009: 406), Ormerod & Truong (2021: 443)
(Fig. 1)
≡ Cirrhopetalum annamense Garay (1999: 306).
Type:— VIETNAM. Lam Dong Province: Annam, Prenn, 1000 m, 1954, T. Sigaldi 144 (C. R. S. T. 151) (holotype P 00362049!).
= Cirrhopetalum roseopunctatum Garay, Hamer & Siegerist (1995: 179).
Type:— VIETNAM. Lam Dong Province: Langbian Plateau, fl. in cult. 1990, L.V. Tempera s.n. (holotype AMES 00085017!, spirit), non B. rosopunctatum Schltr (1913: 770). ≡ Bulbophyllum schwarzii Sieder & Kiehn (2011: 316).
Habitat and phenology: —Epiphyte on tree branches or trunks, at elevation of 1000–1300 m a.s.l., often along streams. Flowers in May–June.
Distribution: —Endemic to southern Vietnam (Dak Lak and Lam Dong provinces).
Conservation assessment: —The species is endemic to Vietnam and, is so far known only from six sites, all of which are facing a decline in the quality of habitat as a result of logging, and hence, these sites are considered as unique locations.Plants are also known to be collected for horticulture purposes.The extent of occurrence and area of occupancy are calculated as 239 km 2 and 24 km 2, respectively. The number of mature individuals and the generation length of the species are not known. Accordingly, this species can be assessed as vulnerable, VU B1ab(iii,v)+B2ab(iii,v).
Note: —This species is sometimes considered as a synonym of B. longiflorum. However, B. annamense clearly differs from B. longiflorum in the petals hardly hairy along the margin of the apical half (vs. margin fimbriate throughout), the surface of the petals is smooth to slightly papillose (vs. surface prominently warty or colliculate), and the lip with auricles, hairy along the margin at the base (vs. lip glabrous, without auricles).
Specimens examined: — VIETNAM: Dak Lak province, 2014, Kuznetsov, Kuznetsova, Nuraliev 918 (photo LE01087138 https://en.herbariumle.ru/?t=occ&id=18662, LE01055727 https://en.herbariumle.ru/?t=occ&id=15092); Lam Dong province, 2010, Averyanov s.n. (photo LE01087139 https://en.herbariumle.ru/?t=occ&id=18663); Lam Dong province, 2022, Averyanov et al. AL 1359 (photo LE01123437 https://en.herbariumle.ru/?t=occ&id=137227); Lam Dong, 2020, Truong Ba Vuong & Ngo Quang Dang BV 628 (VNM, analytical photos LE01124299 https:// en.herbariumle.ru/?t=occ&id=186070).
description: Published as part of Truong, Ba Vuong, Averyanov, Leonid V., Maisak, Tatiana V., Dang, Minh Quan, Nguyen, Van Canh, Amlser, Roland, Nguyen, Quoc Bao & Dang, Van Son, 2023, Bulbophylum sect. Cirhopetallum s. str. (Orchidaceae) in Vietnam with the description of a new species, B. thangii, and a new national record, B. fenestratum, pp. 201-210 in Phytotaxa 625 (2) on page 202, DOI: 10.11646/phytotaxa.625.2.6, http://zenodo.org/record/10150886