• Scientific Name: Bulbophyllum hirundinis (Gagnep.) Seidenf.
• Ref: Dansk Bot. Ark. 29:76. 1973, publ. 1974
• Synonyms: Bulbophyllum electrinum Seidenf.; Cirrhopetalum aurantiacum W.W.Sm.; C. hirundinis Gagnep.; C. melinanthum Schltr.
• Chinese Common Name: 莲花卷瓣兰 liánhuā juǎnbàn∙lán, 红花缘石豆兰 hónghuāyuán shídòu∙lán, 朱红冠毛兰 zhūhóng guànmáo∙lán, 疏花石豆兰 shūhuā shídòu∙lán
• Family: Orchidaceae
• Genus: Bulbophyllum
• Distribution: Tree trunks in forests; 500-3000 m. S Anhui, Guangxi, Hainan, Taiwan, S Yunnan [Vietnam].
• Photo: 05/20/2017, Lin’an, Zhejiang

Rhizome creeping, 1-2 mm in diam., branched. Pseudobulbs close or 5-20 mm apart from each other, ovoid, 7-15 mm, 5-10 mm in diam., with a terminal leaf. Leaf subsessile; blade narrowly elliptic, oblong, or ovate-ligulate, 1.3-5 × 0.6-2 cm, thickly leathery or fleshy, apex obtuse or acute, sometimes retuse. Scape from base of pseudobulb, erect, 3.5-13 cm; peduncle slender, base with a few sheaths; umbel 3-5-flowered; floral bracts lanceolate, ca. 3 mm, apex acuminate. Pedicel and ovary 6-7 mm. Flowers yellow, tinged with purplish red. Dorsal sepal ovate, concave, ca. 5 × 3 mm, margin fimbriate-ciliate, apex acute to subcaudate; lateral sepals linear, (16-)20-30 × 2-3 mm, twisted near base, their lower edges ± connate to each other forming an elliptic synsepal, free and divergent toward apex, entire or shortly ciliate. Petals obliquely ovate-triangular, 3-4 × 1.5-2.5 mm, margins usually fimbriate-ciliate, sometimes densely finely papillate on both surfaces, 3-veined, apex acute; lip slightly recurved, ligulate, ca. 2.5 mm, fleshy, glabrous, obtuse. Column ca. 1.5 mm; foot ca. 1.5 mm, with free part ca. 0.5 mm; stelidia subulate, ca. 0.8 mm; anther cap with many dentate projections. Fl. unknown. (Flora of China)

05/20/2017, Lin’an, Zhejiang