Scientific name: Bulbophyllum penicillium Par & Rchb. f.
English name:
Vietnamese name: Cầu diệp nấm kháng sinh
Other name:

Creeping epiphytic herb. Rhizome semi-woody, stout, simple or few branching, 2-3 mm in diam., 8-14(18) cm long, with erect pseudobulbs distant on (1)1.5-2.5(3) cm. Pseudobulbs narrowly ovoid to ovoid, (1.2)14-2(2.4) cm tall, (0.6)8-1(1.2) cm wide, at the base with papyraceous or fibrous remains of cataphylls, often slightly oblique. Leaves distinctly petiolate; petiole (1.5)2-5.5(6.5) cm long, 2-3 mm in diam., terete, grooved adaxially; leaf blade elliptic to oblong elliptic, (8)9-18(20) cm long, (1.5)2-3.5(4) cm wide, acute. Inflorescence erect, lax raceme, (9)12-20(25) cm tall, many flowered; peduncle straight, nodding at apex, (6)7-14(16) cm long, with 4-5 distant, tubular, scarious, sterile, acute bracts 5-15 mm long, 3-6 mm wide (being flatten); rachis straight, swollen, spindle shaped, (5)6-14(16) cm long, 3-4 mm in diam., glabrous. Floral bracts narrowly triangular, (5)7-10(11) mm long, 0.8-1 mm wide, acute, as long as ovary. Flowers widely opening, few in one time. Pedicel and ovary obconical, glabrous, (4)4.5-5(5.5) mm long, 1-1.5 mm in diam. Sepals glabrous, narrowly triangular to almost linear, acute, 13-15 mm long, less than 1 mm wide, suddenly broadening to 2.5-3 mm wide at the base. Petals forward directed, broadly ovate, blunt at apex, about 1 mm long and wide, long hairy along margin, glabrous on surface. Lip recurved at base, narrowly triangular to almost linear, gradually tapering to acute apex, 8-9 mm long, 0.4-0.6 mm wide, slightly grooved near broadening base, hairy along margins with long soft wavy hairs. Column 1-1.2 mm tall and wide, with slightly protruding stigma; stelidia linear-filiform, 1.2 mm long, slightly curved, swelling at apex, distinctly longer column itself; operculum hemispheric, glabrous, 0.4-0.5 mm in diam.

Habitat, phenology and conservation status.

Creeping epiphyte and lithophyte. Primary broad-leaved and coniferous evergreen humid forests on any kind of mother rocks. 900–1500(2000) m. Fl. February – April. Rare.

Tentatively estimated

IUCN Red List status - DD.

Distribution.

Vietnam: Ha Giang (Quan Ba and Bac Me districts) and Lao Cai (Van Ban district) provinces.

Bhutan, NE. India, Myanmar