65. Bulbophyllum forrestii Seidenfaden, Dansk Bot. Ark. 29(1): 120. 1974.
尖角卷瓣兰 jian jiao juan ban lan
Cirrhopetalum aemulum W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 13: 195. 1921, not Bulbophyllum aemulum Schlechter (1905); Rhytionanthos aemulus (W. W. Smith) Garay, Hamer & Siegerist.
Rhizome creeping, ca. 4 mm in diam. Pseudobulbs 1-2 cm apart on rhizome, ovoid, 2-3 cm, 1-2 cm in diam., with a terminal leaf. Petiole 2-3 cm; leaf blade oblong, 15-25 × 1.3-2.8 cm, thickly leathery, base contracted into petiole, apex obtuse and slightly emarginate. Scape from base of pseudobulb, yellowish green, densely spotted with purple, erect, to 15 cm, slender; raceme shortened, umbel-like, 10-flowered; peduncle sparsely with 3 or 4 membranous sheaths; floral bracts narrowly lanceolate, ca. 1 cm. Pedicel and ovary yellow, 1-1.8 cm. Flowers yellow, with purplish red spots on lip. Dorsal sepal ovate, concave, 7-10 × ca. 4 mm, apex subobtuse; lateral sepals lanceolate, 1.5-2.5 cm, outer surface minutely papillate, base adnate to column foot and twisted above it, their upper and lower edges connate to each other forming a lanceolate tube, apex acuminate. Petals ovate-triangular, 2-3 × 1.5-2 mm, margins irregularly denticulate, apex acute; lip recurved, lanceolate, ca. 5 mm, strongly narrowed above middle, base attached to end of column foot by a mobile joint, margin decurved and ± minutely papillate, apex obtuse. Column short; column foot curved, with free part ca. 2 mm; stelidia shortly subulate, ca. 0.5 mm; anther cap with irregularly incised margin. Fl. May-Jun.
Tree trunks in forests; 1800-2000 m. S and W Yunnan [Myanmar, Thailand].