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FOC | Family List | FOC Vol. 25 | Orchidaceae | Bulbophyllum

29. Bulbophyllum menglunense Z. H. Tsi & Y. Z. Ma, Acta Bot. Yunnan. 7: 83. 1985.

勐仑石豆兰 meng lun shi dou lan

Plants small. Rhizome creeping, slender, ca. 1 mm in diam., bearing roots from base of pseudobulbs. Pseudobulbs ca. 1 cm apart on rhizome, ovoid, 5-7 mm, 3-4 mm in diam., base ± prostrate on rhizome, with a terminal leaf. Petiole ca. 1 mm, ± twisted; leaf blade ovate, 8-13 × 5-6 mm, leathery, apex mucronate. Scape from base of pseudobulb or node of rhizome, erect, filiform, 5-7 mm, ca. 0.4 mm in diam., terminating in a solitary flower, with 1 sheath at base; floral bracts cupular, ca. 1 mm, membranous. Pedicel and ovary ca. 2 mm. Flowers very small, purplish red. Sepals free; dorsal sepal ovate, ca. 2.1 × 0.8 mm, apical margins slightly incurved, apex acuminate; lateral sepals obliquely ovate-lanceolate, ca. 2.2 × 1.1 mm, margins ± incurved above middle, apex acute. Petals elliptic, ca. 1 × 0.7 mm, apex acute; lip slightly recurved, subcylindric, ca. 1.5 × 0.3 mm, fleshy, base connate to end of column foot, immobile, margins in basal half with glandular hairs. Column ca. 1 mm; foot ca. 0.8 mm, without distinct free part; stelidia inconspicuous; anther cap subglobose. Fl. Mar.

● Tree trunks in open forests in limestone areas; ca. 800 m. S Yunnan.


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