ORCHIDACEAE - China

454EPIDENDROIDEAEaxillary, 5–10 mm, 1–3-flowered; peduncle ca. 1 mm in diam.,with 1 or 2 sheaths at base; floral bracts ovate-triangular, ca. 1mm, obtuse. Flowers not opening widely, yellowish green, withwhite and purple-red spotted lip, slightly fleshy; pedicel andovary 2.5–3 mm. Sepals oblong-elliptic or oblong, ca. 3 × 1.2mm, dorsally ± carinate, apex obtuse; lateral sepals slightlyoblique. Petals narrowly falcate-oblong, ca. 2.8 × 7 mm, dorsallycarinate, apex obtuse; lip ca. 2.5 mm, 3-lobed; laterallobes erect, suborbicular; mid-lobe ca. 1.5 × 2.5 mm, with 3lobules nearly equal in size; lateral lobules subovate-triangular,large, obtuse; mid-lobule ovate-triangular, adaxially denselyminutely papillate; spur parallel to ovary, tubular, ca. 2 × 1.2mm, obtuse, with a ca. 0.3 mm ligulate appendage on its backwall, densely villous from upper inner wall to its entrance. Columnca. 8 mm; stipe ca. 0.7 mm, narrow. Fl. Aug. 2n = 38, 40.Epiphytic on tree trunks in forests; 1100–1200 m. S Yunnan [Thailand,Vietnam].2. Trichoglottis rosea (Lindley) Ames in E. D. Merrill, Enum.Philipp. Fl. Pl. 1: 440. 1925.短 穗 毛 舌 兰 duan sui mao she lanCleisostoma roseum Lindley, Edwards’s Bot. Reg. 24(Misc.): 80. 1838; C. breviracemum Hayata; C. oblongisepalumHayata; Pomatocalpa breviracemum (Hayata) Hayata; Trichoglottisbreviracema (Hayata) Schlechter; T. oblongisepala (Hayata)Schlechter; T. rosea var. breviracema (Hayata) T. S. Liu &H. J. Su.Stems clustered, pendulous, to 50 cm, internodes 1.5–2cm. Leaves many, distichous; blade narrowly lanceolate, 7–10 ×1.2–1.5 cm, slightly fleshy, with amplexicaul-sheathing base,apex acute. Inflorescences several, borne opposite leaves, veryshort, 3–6-flowered; peduncle 3–6 mm; floral bracts broadlytriangular, ca. 2 mm. Flowers white, sometimes tinged withpale yellow or purple; pedicel and ovary ca. 5.5 mm. Dorsalsepal oblong, 7–9 × 2.5–3.5 mm, acute; lateral sepals obliquelyovate, 6–8 × 4–5 mm, acute. Petals falcate-oblanceolate, 7–9 ×2–3 mm, acute; lip somewhat fleshy, shortly spurred; laterallobes erect, deltoid, ca. 1 mm, obtuse; mid-lobe broadly ovate,2–3 × 2.5–3.5 mm, apex obtuse, base thickened, forming afleshy appendage almost covering spur entrance; spur obconic,ca. 2.5 mm, with a ligulate appendage on upper back wall.Fl. Apr–May. 2n = 38*.● Epiphytic on tree trunks in forests at low elevations. S Taiwan.159. STAUROCHILUS Ridley ex Pfitzer in Engler & Prantl, Nat. Pflanzenfam. Nachtr. 2: 16.1900.Sarothrochilus Schlechter.掌 唇 兰 属 zhang chun lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, epiphytic, monopodial, large. Stems ascending, climbing or pendulous, long or short, with many nodes. Leaves many,distichous, usually lorate, with nodes, base amplexicaul-sheathing, sessile, jointed. Inflorescences axillary, paniculate, often oppositeto leaves, laxly several to many flowered. Flowers usually opening widely, small to medium-sized. Sepals free, similar. Petalsslightly smaller; lip fleshy, adnate at base to column, immovable, base shortly spurred or slightly saccate, 3- or 5-lobed; lateral lobeserect; mid-lobe usually ± hairy on adaxial surface; spur, if present, with a hairy ligulate appendage on its back wall. Column short,stout, often hairy, foot indistinct; pollinia 4 in unequal pairs, waxy, subglobose, unequal in size, with a common narrow stipe and asolitary ovate viscidium.About 14 species: from India through SE Asia to Indonesia and the Philippines; three species in China.1a. Inflorescences shorter than leaves; peduncle and rachis 1–1.5 mm in diam. ................................................................... 2. S. loratus1b. Inflorescences longer than leaves; peduncle and rachis stout, ca. 3 mm in diam.2a. Lip 5-lobed ........................................................................................................................................................ 1. S. dawsonianus2b. Lip 3-lobed ............................................................................................................................................................ 3. S. luchuensis1. Staurochilus dawsonianus (H. G. Reichenbach) Schlechter,Orchideen, 577. 1914.掌 唇 兰 zhang chun lanCleisostoma dawsonianum H. G. Reichenbach, Gard.Chron. 1868: 815. 1868; Sarothrochilus dawsonianus (H. G.Reichenbach) Schlechter; Trichoglottis dawsoniana (H. G.Reichenbach) H. G. Reichenbach.Stems ascending, terete, to more than 50 cm, 6–7 mm indiam., rigid, sometimes branching, with many nodes, internodes1.5–2.5 cm. Leaves many, distichous, narrowly oblong, 11–15× 1.5–2 cm, obtuse and unequally bilobed. Inflorescence oppositeto leaf, paniculate, to 45 cm, laxly many flowered; peduncle3–4 mm in diam.; rachis yellowish green, slightly compressedor ± trigonous, narrowly winged; floral bracts ovate-triangular,5–7 mm, obtuse. Flowers opening widely, fleshy, sepals andpetals pale yellow, adaxially with chestnut transverse stripes, liporange-yellow, disk with a central red band; pedicel and ovary1.5–2 cm. Dorsal sepal subspatulate, ca. 15 × 5 mm, dorsallycarinate, mucronate; lateral sepals slightly oblique, oblong, ca.15 × 5 mm, rostrate. Petals spatulate, ca. 14 × 4 mm, retuse andshortly rostrate; lip ca. 7 mm, 5-lobed; basal lobes oblong, ca.4.8 × 1.7 mm; lateral lobes narrowly oblong, ca. 4 × 1.5 mm,obtuse; apical lobes narrowly obovate, ca. 2.5 mm, thicklyfleshy, obtuse and emarginate at apex; disk densely hirsute; spurconic, ca. 1 mm, thickly fleshy, with a broadly ovate-triangularappendage on its back wall. Column ca. 3 mm, stout, stelidia