ORCHIDACEAE - China

EPIDENDROIDEAE 453Schoenorchis paniculata Blume var. vanoverberghii(Ames) S. S. Ying.Stems 5–15 cm, rooting at base, internodes ca. 5 mm.Leaves many, distichous; leaf blade flat, narrowly oblong orlinear-lanceolate, 5–6 × 0.4–0.7 cm, obtuse or unequally bilobed.Inflorescence paniculate, borne from near apex of stem,6–7 cm, branched, densely many flowered; floral bracts deltoid,ca. 3 mm. Flowers white, not opening widely; pedicel andovary ca. 2 mm. Dorsal sepal elliptic, 2–2.3 × 1–1.2 mm,rounded; lateral sepals obliquely ovate, 2.3–2.5 × 1.2–1.5 mm,obtuse. Petals obovate or elliptic, ca. 2 × 0.9–1 mm, rounded;lip spatulate, ca. 2.5 × 1.3 mm, fleshy, 3-lobed; lateral lobeserect, nearly suborbicular; mid-lobe hornlike, rather thick; spursubellipsoid, ca. 1.3 mm, with a ligulate appendage on frontwall of entrance. Column ca. 0.6 mm. Fl. Mar–May.Epiphytic in forests; ca. 1000 m. Taiwan [Philippines].157. CLEISOSTOMOPSIS Seidenfaden, Opera Bot. 114: 370, 372. 1992.拟 隔 距 兰 属 ni ge ju lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, epiphytic, monopodial. Stems elongate, slender, enclosed in leaf sheaths of leaves, laxly many leaved. Leaves terete,with sheathing base, jointed. Inflorescences racemose, lateral, piercing sheaths; floral bracts small; pedicel and ovary longer thanfloral bracts. Flowers small. Sepals free, lateral sepals slightly larger than dorsal sepal. Petals smaller than sepals; lip adnate at base tocolumn, spurred, 3-lobed; spur much longer than sepals, inside with a Y-shaped callus on back wall, but without septum. Columnshort, stout, without a foot; rostellum large; stigma concave; pollinia 4 in 2 pairs, waxy, subglobose, each pair with a caudicle,attached by a common stipe to a large viscidium.One species: China, Vietnam.1. Cleisostomopsis eberhardtii (Finet) Seidenfaden, OperaBot. 114: 372. 1992.拟 隔 距 兰 ni ge ju lanSaccolabium eberhardtii Finet, Notul. Syst. (Paris) 1: 258.1910; Sarcanthus eberhardtii (Finet) Tang & F. T. Wang;Schoenorchis eberhardtii (Finet) Averyanov.Stems arching, to 50 cm, 2–3 mm in diam., laxly manyleaved. Leaf blade terete, 5–15 cm × ca. 2 mm, fleshy, obtuse.Inflorescences usually 1 or 2, 5–10 cm, unbranched, laxly manyflowered; floral bracts triangular, ca. 2 mm. Flowers white,small; lip mid-lobe lilac; pedicel and ovary 4–5 mm. Sepalsbroadly ovate-elliptic, ca. 2.2 × 1.6 mm, obtuse; lateral sepalsslightly larger than dorsal sepal. Petals ovate, ca. 2 × 1 mm,rounded; lip spurred at base, 3-lobed; lateral lobes erect, broadlyovate, ca. 0.3 mm, rounded; mid-lobe ovate, cymbiform, ca. 1mm, fleshy, acute and incurved; spur cylindric-clavate, 3–3.5mm, dilated toward apex, inside with a Y-shaped callus on itsback wall. Column ca. 0.8 mm; stipe lanceolate, ca. 0.5 mm;viscidium ± oblong, ca. 0.5 × 0.4 mm. Fl. May–Jun. 2n = 38,40.Epiphytic on tree trunks in forests; ca. 600 m. SW Guangxi [Vietnam].158. TRICHOGLOTTIS Blume, Bijdr. 359. 1825.毛 舌 兰 属 mao she lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, epiphytic, climbing, monopodial. Stems pendulous or climbing, short or long, slender, internodes elongated, with few tomany nodes. Leaves many, distichous, linear to elliptic, slightly fleshy or leathery, base sheathing and jointed, apex usually unequallybilobed. Inflorescences lateral, axillary, several to many or rarely solitary, peduncle very short, 1- to several flowered, often morethan 1 per node. Flowers lasting ca. 1 week, resupinate, opening widely, usually yellowish with light brown or purple markings,rather small. Sepals and petals free. Petals slightly smaller than sepals; lip immovable, spurred or saccate at base, 3-lobed; laterallobes erect; mid-lobe sometimes 3-lobed, often hairy or papillate; sac or spur often thickened, with a hairy ligulate appendage onback wall just below base of column. Column short and stout, without a foot, often with small roughly hairy stelidia; rostellum short;pollinia waxy, 4, appearing as 2 unequal masses, attached by a common linear-oblong stipe to a small, ovate or elliptic viscidium.About 55–60 species: India (Nicobar Islands) and Sri Lanka east to New Guinea, Australia and the Solomon Islands, north to S China, with thecenter of diversity in Indonesia and the Philippines; two species (one endemic) in China.1a. Stems erect, 0.5–1.5 cm; raceme 2- or 3-flowered ........................................................................................................... 1. T. triflora1b. Stems pendulous, to 50 cm; raceme 3–6-flowered .............................................................................................................. 2. T. rosea1. Trichoglottis triflora (Guillaumin) Garay & Seidenfaden,Bot. Mus. Leafl. 23: 209. 1972.毛 舌 兰 mao she lanSaccolabium triflorum Guillaumin, Bull. Mus. Natl. Hist.Nat., sér. 2, 28: 239. 1956.Plants small. Roots slightly flattened. Stem erect, 5–15mm, enclosed in leaf sheaths. Leaves 6 or 7, distichousequitant,recurved, often V-shaped-conduplicate, 2–3.5 × 0.5–0.6 cm, apex obtuse and unequally bilobed. Inflorescences 1–3,