Bulbophyllum scabratum Rchb.f.

Bulbophyllum scabratum Rchb.f., Ann. Bot. Syst. (Walpers) 6(2): 259 (1861).

Bulbophyllum scabratum Rchb.f.; Photo Hiroaki Sasaki

Bulbophyllum scabratum Rchb.f.; Photo by Yosuke Oda

Family:

Orchidaceae.

Synonym:

Bulbophyllum confertum Hook.f.

Cirrhopetalum caespitosum Wall. ex Lindl.

Phyllorchis conferta (Hook. f.) Kuntze

Phyllorkis conferta (Hook.f.) Kuntze

English Name:

The Rough Bulbophyllum (refers to the surface of the sepals and petals).

Description:

Epiphyte as well as lithophyte. Always in clusters with pseudo-bulbs crowded together forming dense turfs. Bulbs very small, ovoid less than 1 cm long. Leaf solitary, linear-lanceolate, acute, the base narrowed to the petiole 5 to 8 cm long and less than 2 cm in width. Scape much shorter than the leaves, slender, erect, minutely bracteate, bearing at its apex 3 to 7 flowers in an umbel. Flowers bright yellow throughout with slight ocherous tinge here and there. Dorsal sepal free at its base from the lateral pair, very concave, vaulted over the column, ovate, shortly acuminate. The lateral pair much longer than the dorsal, linear lanceolate, partly coherent, the bases and apices free. Petals broadly ovate, acute. The margins of petals and sepals are teethed. Lip oblong, sub-acute, entire, fleshy, very concave near the base.

Distribution: 

Assam, Bangladesh, China South-Central, China Southeast, East Himalaya, Laos, Myanmar, Nepal, Thailand, Tibet, Vietnam.

Ecological:

Epiphytes, which grow cool at an altitude of about 1100 to 2100 m.

Refs:

Kurzweil, H. & Ormerod, P. (2018). Precursory studies on the orchid flora of Myanmar with one new species and thirty eight new distribution records Rheedea 28: 1-15.

Yonzone, R. & al. (2015). Taxonomic assessment on the six new records of Bulbophyllum Thour. (Orchidaceae) for Darjeeling himalaya of West Bengal, India The Indian Forester 141: 993-998.

Lucksom, S.Z. (2007). The orchids of Sikkim and North East Himalaya: 1-984. S.Z.Lucksom, India.

Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.

Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.