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LOÀI

Tên Khoa học: Bulbophyllum spadiciflorum Tixier
Tên tiếng Anh:
Tên tiếng Việt:
Tên khác:

MÔ TẢ CHUNG

Epiphyte herb with densely clustering pseudobulbs of short stout many branching rhizome. Pseudobulbs rather inconspicuous, erect, narrowly ovoid to cylindric, (0.8)1-1.5(1.8) cm tall, (6)8-10(1.2) cm in diam. Leaves petiolate; petiole (1)1.5-2(2.5) cm long, 3-4 mm in diam.; leaf blade oblong lanceolate, coriaceous, (18)20-25(27) cm long, (2.2)2.5-3)3.2) cm wide, obtuse. Inflorescence pale reddish-brown, arcuate sublax, spadix-like raceme (25)30-45(50) cm long; peduncle erect to patent, (12)15-20(25) cm long, with 4-5 sterile, narrowly ovate bracts 1-2 cm long; rachis arcuate to pendulous, swollen, terete, (16)20-25(30) cm long, 5-6 mm in diam. Floral bracts greenish, narrowly triangular 1.5-2 mm long, acute, as long as half of ovary. Pedicel and ovary green, obconical, 3.5-4 mm long, 1.5-2 mm in diam. at apex, longitudinally grooved. Flowers yellowish-green, spirally arranged, not widely opening, anthesis starts from the apex of rachis. Sepals subsimilar, with 3-4 reddish-brown nerves, triangular, straight, acute, sparsely ciliate along margin, 4-5 mm long; median sepal 0.8-1.2 mm wide; lateral sepals slightly oblique, 2-2.2 mm wide. Petals pink to light purple, spatulate, triangular acute at apex, 1.4-1.6 mm long, 0.5-0.6 mm wide, brownish-purple ciliate along margin in apical part. Lip dark violet, recurved and grooved at base, oblong narrowly obovate, without median ridges, convex in distal half, 3.5-4.5 mm long, 1.2-1.4 mm wide, rounded, glossy glabrous, margins with long soft, wavy, white hairs. Column white to light green, 1.6-1.8 mm tall, with triangular obtuse stelidia and large protruding stigma. Anther cap white, narrowly ovoid, papillose, ciliate at front.

Habitat, phenology and conservation status

Creeping epiphyte. Primary broad-leaved evergreen humid forests on granite. 1000–1500 m. Fl. April – May. Very rare.

Tentatively estimated

IUCN Red List status - EW.

Distribution

Vietnam: Lam Dong (Dalat City area) province. Endemic. 

ẢNH

Bulbophyllum spadiciflorum on Taiwania 62(1)-1.jpg at www.BotanyVN.com

Ảnh 1. Bulbophyllum spadiciflorum on Taiwania 62(1)-1.jpg

 

Bulbophyllum spadiciflorum on Taiwania 62(1)-2.jpg at www.BotanyVN.com

Ảnh 2. Bulbophyllum spadiciflorum on Taiwania 62(1)-2.jpg

 

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

CHỈ SỐ

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