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LOÀI

Tên Khoa học: Bulbophyllum penicillium Par & Rchb. f.
Tên tiếng Anh:
Tên tiếng Việt: Cầu diệp nấm kháng sinh
Tên khác:

MÔ TẢ CHUNG

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

ẢNH

Bulbophyllum penicillium and Bulbophyllum nigripetalum and Bulbophyllum on Taiwania 62(1).jpg at www.BotanyVN.com

Ảnh 1. Bulbophyllum penicillium and Bulbophyllum nigripetalum and Bulbophyllum on Taiwania 62(1).jpg

 

PHÂN LOẠI KHOA HỌC
Giới: Thực vật
Ngành: Magnoliophyta
Lớp: Liliopsida
Bộ: Orchidales
Họ: Orchidaceae
Chi: Bulbophyllum

CHỈ SỐ

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