Bulbophyllum moniliforme Parish & Reichenbach (1874: 151)

Dang, Minh Quan, Averyanov, Leonid V., Maisak, Tatiana V., Tran, Thi Thuy Nhan, Nguyen, Van Canh, Wook, Um Sung, Nguyen, Quoc Bao, Truong, Quang Tam & Truong, Ba Vuong, 2024, Bulbophyllum section Macrocaulia (Orchidaceae) in Vietnam, Phytotaxa 677 (3), pp. 265-277 : 269

4. Bulbophyllum moniliforme Parish & Reichenbach (1874: 151) , Seidenfaden (1979: 50), Averyanov et al. (2016a:

326), Kumar et al. (2018: 67).

( Fig. 1D )

Type: — MYANMAR. E. C.Parish 196 (lectotype K! Clayton 2017: 67).

≡ Phyllorkis moniliformis (Parish & Reichenbach) Kuntze (1891: 677) .

= Bulbophyllum paramjitii Agrawala (2016: 273) . Type:— INDIA. Sikkim: East District, near Bhusuk, 1550 m, 26 March 2015, Sharief & Singh 37938 (holotype BSHC).

= Bulbophyllum subtenellum Seidenfaden (1979: 46) . Type:— THAILAND. Bueng Kan: Nonkhai, 120 m, 15 November 1966, TS (Tem Smitinand) s.n. (holotype C).

Habitat and phenology: —Creeping trunk and branch epiphyte. Evergreen forests at elevation of about 800 m a.s.l. Flowers in December and April.

Distribution: — Vietnam (Khanh Hoa and Lam Dong provinces). Nepal, NE India (Assam) , Myanmar, Thailand, Cambodia.

Conservation assessment:— Bulbophyllum moniliforme is known from two sites in Vietnam which constitute an area of occurrence of 8 km 2. These sites fall within Lam Dong province and a very small population within the Hon Ba Nature Reserve. In Hon Ba, the species grows exclusively as epiphyte on woody climbers, and while no habitat destruction is reported, its miniature size makes it difficult to detect. As such there is no threat known to this species, although the species is known to occur in wild orchid trade. Accordingly, the species can be considered as Least Concerned. The species is known to be widespread from Himalaya via south China to Indo-Myanmar Biodiversity Hotspot. Hence, the globally preliminary assessment is retained for the final regional assessment of this species in Vietnam.

Specimens examined: — VIETNAM, flowering in culture in Hanoi, originated from Lam Dong Province, Averyanov et al., AL208 (photo, LE LE01057934, https://en.herbariumle.ru/?t=occ&id=8439). VIETNAM, Khanh Hoa Province, Cam Lam District, Suoi Cat Commune, Hon Ba Nature Reserve, Truong Ba Vuong, s.n. (photo, LE LE01087378, https://en.herbariumle.ru/?t=occ&id=38698).

Figures

FIGURE 1. Flowers of species of Bulbophyllum section Macrocaulia in the flora of Vietnam. A. Bulbophyllum ovalifolium (specimen BV378 VNM00070770). B. B. malleolabrum (AL3183 LE01255063). C. B. catenarium (BV1210 VNM00070774). D. B. moniliforme (BV s.n. LE 01087378. E. B. ignevenosum (BV1794 VNM 00063960). F. B. physocoryphum (BV1041 VNM00070762). Photos by Truong Ba Vuong and L. Averyanov.