ORCHIDACEAE - China

EPIDENDROIDEAE 4312a. Lip with small auricles well above base; stelidia straight or slightly curved downward, triangular ............... 72. B. picturatum2b. Lip without auricles; stelidia strongly curved downward, hook-shaped and fusiform .................................. 73. B. amplifolium1b. Dorsal sepal ciliate to fimbriate, or with other appendages along margins.3a. Lateral sepals 15–19 cm ........................................................................................................................... 74. B. rothschildianum3b. Lateral sepals less than 6 cm.4a. Scape ca. as long as pseudobulb.5a. Lateral sepals 5–7 mm, ca. 2 × as long as dorsal sepal or shorter .......................................... 75. B. brevipedunculatum5b. Lateral sepals ca. 10 mm, ca. 2.5 × as long as dorsal sepal or longer .................................................. 76. B. henanense4b. Scape much longer than pseudobulb.6a. Lateral sepals 0.7–1.4 cm.7a. Adaxial surface of lip glabrous; lateral sepals 0.7–1.1 cm ........................................................ 77. B. albociliatum7b. Adaxial surface of lip partly papillose; lateral sepals 1.2–1.4 cm .............................................. 78. B. kuanwuense6b. Lateral sepals 1.5–3.5 cm or longer.8a. Lateral sepals long caudate at apex ......................................................................................... 79. B. pecten-veneris8b. Lateral sepals obtuse to acute at apex.9a. Stelidia of column narrowly lanceolate, ca. 5 mm ........................................................ 80. B. longibrachiatum9b. Stelidia of column toothlike, filiform, or subulate, less than 1.5 mm.10a. Lateral sepals free, with or without upper and lower margin inrolled; or lateralsepals partly connate and with upper and lower margin inrolled.11a. Lateral sepals without inrolled margins, free ....................................................... 81. B. taiwanense11b. Lateral sepals with inrolled margins, free or partly connate.12a. Lateral sepals ca. 3.4 cm; lip with 2 keels adaxially ..................................... 82. B. setaceum12b. Lateral sepals 1.2–1.5 cm; lip without keels adaxially ........................ 83. B. melanoglossum10b. Lateral sepals connate along upper margin, without inrolled margins (lateralsepals may be folded over midvein).13a. Floral bracts 7–8 mm; column ca. 6 mm ......................................................... 84. B. pingtungense13b. Floral bracts 3–5 mm; column 1–3 mm.14a. Lip with 2 longitudinal grooves and between them a keel adaxially ............. 85. B. tseanum14b. Lip without grooves and keel as above.15a. Stelidia suborbicular ............................................................................... 86. B. lepidum15b. Stelidia subulate.16a. Dorsal sepal acuminate .............................................................. 87. B. hirundinis16b. Dorsal sepal rounded to obtuse .................................... 88. B. fimbriperianthium72. Bulbophyllum picturatum (Loddiges) H. G. Reichenbach,Ann. Bot. Syst. 6: 262. 1861.彩 色 卷 瓣 兰 cai se juan ban lanCirrhopetalum picturatum Loddiges, Edwards’s Bot. Reg.26(Misc.): 49. 1840.Rhizome creeping, 6–10 mm in diam., densely coveredwith membranous sheaths. Pseudobulbs 2–6 cm apart fromeach other, ovoid-cylindric, 3–9 cm, 1.5–3 cm in diam., with aterminal leaf. Petiole 4–5 cm; leaf blade elliptic or ellipticoblong,15–25 × 3–6 cm, leathery, base subrounded, apex obtuse.Scapes 1 or 2, from base of pseudobulbs, erect, 15–18 cm;umbel 5–13-flowered; peduncle with 3–5 tubular sheaths; floralbracts lanceolate or oblong-lanceolate, 7–8 mm. Pedicel andovary 1.6–1.8 cm. Flowers large, yellowish, median sepal andpetals spotted with purple distally, lateral sepals finely spottedwith purple proximally; lip yellowish spotted with purple. Dorsalsepal elliptic, concave, 6–6.5 × 5.5–6 mm, apex rounded toemarginate, with a (clavate-tipped) thread 5–7 mm; lateral sepalsovate-triangular, 23–35 × 5–6 mm, base adnate to columnfoot and twisted above it, their upper edges connate to eachother except in basal part. Petals elliptic to ovate, ca. 4 × 2.5mm, tip caudate with a thread 1–1.5 mm, margins finely eroseto deeply lacerate distally; lip recurved, with rounded, patentauricles well above base, ovate-oblong, 3.5–5 × 1.5–3 mm,fleshy, adaxially with 2 rounded ridges, base hardly concave,apex obtuse. Column ca. 3 mm; foot ca. 3 mm, with free partca. 1.5 mm; stelidia porrect or slightly curved downward,triangular, acute, with a small tooth along upper margin, ca. 1.5mm; anther cap toothed at apex. Fl. Mar.Tree trunks in limestone forests; ca. 1100 m. SW Yunnan (Menglian)[India, Myanmar, Thailand, Vietnam].This species was first recorded from China by X. H. Jin and S. C.Chen (Acta Bot. Yunnan. 29: 169. 2007).73. Bulbophyllum amplifolium (Rolfe) N. P. Balakrishnan &Sud. Chowdhury, Bull. Bot. Surv. India 9: 89. 1967.大 叶 卷 瓣 兰 da ye juan ban lanCirrhopetalum amplifolium Rolfe, Notes Roy. Bot. Gard.Edinburgh 8: 21. 1913.Rhizome creeping, 6–10 mm in diam., densely coveredwith membranous sheaths. Pseudobulbs ca. 10 cm apart fromeach other, ovoid-cylindric, 5–8 cm, ca. 1.5 cm in diam., with aterminal leaf. Petiole 4–7 cm; leaf blade elliptic or ellipticoblong,(8–)10–21 × ca. 8.5 cm, leathery, base subrounded,apex obtuse. Scapes 1 or 2, from base of pseudobulbs, erect,15–30 cm; umbel 4–8-flowered; peduncle 3–4 mm in diam.,sparsely with 3–5 tubular sheaths; floral bracts lanceolate or