bǎo sāng juǎn bàn lán
宝桑卷瓣兰
Bulbophyllum baosangii Vuong, B.N.Tu, V.H.Bui, R.Amsler & Cootes
分类信息
模式标本:Vietnam, Ha Giang province, Quan Ba district, 8 July 2019, the type specimen was prepared from cultivated plant in Lam Dong province, TrUONG Ba Vuong, BUI Van Huong, NGO Quang Dang, LOC Bao Sang, BV 362 (VNM 00069924).
形态特征
形态特征:Branched epiphyte orchid. Pseudobulbs with one leaf ovoid, oblique, 1.3 – 1.5 cm long, connected by woody rhizome, covered by overlapping brown bracts, ca. 2 mm in diam., 2.3 – 2.5 cm apart. Roots from base of pseu- dobulbs and along the rhizome. Leaf blade lanceolate, ca. 4.9 cm long, 1.7 cm wide, apex obtuse, slightly retuse, base twisted into small petiole ca. 2 mm long and attached to apex of pseudobulb. Inflorescence arising from base of pseudo- bulb, slender, umbellate, carrying 2 to 8 flowers which open simultaneously, peduncle ca. 1.5 cm long, covered by 2 – 3 overlapping brown tubular bracts, rachis green spotted with purple, ca. 3 – 4 mm long, floral bract triangular, ca. 3 mm long, apex acuminate, pedicel (with ovary) purplish, slightly curved, ca. 7.5 mm long, pedicel slenderer than ovary. Dor- sal sepal and petals pale purple white, lateral sepals purple at base and purplish white on apical part, lip purple at base, pale purple on apical part. Dorsal sepal ovate, concave, ca. 3.5 mm long, 2 mm wide, apex obtuse, slightly retuse, 3 purple veins. Lateral sepals glabrous, narrowly ovate, ca. 22 mm long, 2 mm wide (at base), apex acute, margin twisted at base, upper margin and lower margin connate to each other to the apex, free at base. Petals broadly obovate, ca. 3 mm long, 3 mm wide (at widest part), apex rounded. Lip out-curved, simple, glabrous, ca. 3 mm long, 1 mm wide (at base), apex obtuse to truncate, slightly retuse, base slightly concave and channeled at base without keel, attached with column foot by white thin ligament. Column ca. 1.5 mm long, oblique, lower margin with inconspicuous triangular wing, column foot up-curved on apical half, apex bilobed, stelidia pointing forward, subulate, apex acute, upper margin with shallowly triangular tooth. Anther cap ca. 1 mm long, rectangular in outline shape, truncate beak, Pollinia 4, falca- te. Fruit not seen.
生态习性
分布:越南下江省。
特有:越南北部特有。
生境:树干上
海拔:1000米
物候:花期8月。
功用价值
植物文化:The plant is named after LOC Bao Sang who found the specimens and provided them for investigation.