ORCHIDACEAE - China

EPIDENDROIDEAE 445146. SARCOPHYTON Garay, Bot. Mus. Leafl. 23: 201. 1972.肉 兰 属 rou lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, epiphytic, monopodial. Stems erect, elongate, stout, with many leaves. Leaves distichous, sessile, with sheathing bases;leaf blade flat, thickly leathery to fleshy, jointed to sheath. Inflorescence racemose or paniculate, lateral, axillary, laxly manyflowered. Flowers small to medium-sized. Sepals similar, free. Petals smaller; lip adnate at base to column, 3-lobed; lateral lobeserect; mid-lobe recurved, adaxially usually conspicuously wrinkled, base with 2 calli at entrance of spur; spur cylindric. Columnsmall, foot absent; stigma large and round; rostellum short, bilobed; pollinia 4, separate from each other, waxy, subglobose, almostequal in size, with a linear stipe and a small viscidium.Three species: discontinuously distributed in China, Myanmar, and the Philippines; one species (endemic) in China.1. Sarcophyton taiwanianum (Hayata) Garay, Bot. Mus.Leafl. 23: 202. 1972.肉 兰 rou lanSarcanthus taiwanianus Hayata, J. Coll. Sci. Imp. Univ.Tokyo 30(1): 337. 1911; Acampe hayatae Szlachetko; Cleisostomataiwanianum (Hayata) Hayata; Saccolabium taiwanianum(Hayata) Tang & F. T. Wang.Stem 25–100 cm. Leaves many, distichous; leaf bladelorate, 20–35 × 3–4.5 cm, leathery, ± unequally obtusely bilobed;basal sheaths long, amplexicaul. Inflorescences often several,ascending, racemose, shorter than leaves, many flowered;rachis rather fleshy; floral bracts subtriangular, 4–5 mm. Flowersslightly fragrant, yellowish green, adaxially with purplishbrown transverse stripes or spots, slightly fleshy; pedicel andovary 1–1.5 cm. Sepals obovate-oblong to obovate, ca. 10 × 5mm, obtuse; lateral sepals slightly oblique. Petals ± falcateelliptic,ca. as long as sepals but narrower, obtuse-rounded; lipwith a short spur at base, slightly 3-lobed; lateral lobes erect;mid-lobe recurved, nearly suborbicular; disk with 2 calli atentrance of spur. Column short. Fl. Apr.● Epiphytic on tree trunks in forests or on cliffs along valleys;200–800 m. S Taiwan.Camarotis Lindley.147. MICROPERA Lindley, Edwards’s Bot. Reg. 18: ad t. 1522. 1832.小 囊 兰 属 xiao nang lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, clambering, monopodial. Stems long, with many long roots and leaves. Leaves many, flat, fleshy, oblong to linear,with sheathing base, jointed. Inflorescence often borne opposite leaves, rather long, racemose, many flowered. Flowers small ormedium-sized, not resupinate. Sepals and petals free, similar; lip conspicuously spurred or saccate, 3-lobed; lateral lobes broad,erect; mid-lobe smaller, fleshy; spur often ornamented at its entrance, commonly with a longitudinal septum inside. Column short,lacking a foot; rostellum projection prominent, beaked; pollinia 4, in 2 subequal pairs on a common long stipe; viscidium very small.About 15 species: ranging from the Himalayas to SE Asia, New Guinea, Australia, and the Solomon Islands; one species in China.1. Micropera poilanei (Guillaumin) Garay, Bot. Mus. Leafl.23: 186. 1972.小 囊 兰 xiao nang lanSarcanthus poilanei Guillaumin, Bull. Soc. Bot. France77: 330. 1930; Camarotis poilanei (Guillaumin) Seidenfaden& Smitinand.Stems to 1 m, climbing, with internodes ca. 2.5 cm, manyleaved. Leaf blade linear, 15–20 × 1.5–1.8 cm, leathery, apexobtuse. Inflorescence racemose, with 20–25 flowers; rachis to24 cm; floral bracts tiny, ca. 1 × 1 mm. Flowers white to greenwhite;pedicel and ovary ca. 6 mm. Dorsal sepal linear, 7–8 ×ca. 1.5 mm, distinctly 3-veined; lateral sepals linear, ca. 6 × 1.5mm, joined together and adnate to claw of lip. Petals linear, 7–8× 1.2–1.5 mm; lip spurred, with a basal claw 3–4 mm; spurconic-cylindric, 2–3 mm. Column slender, ca. 6 mm; rostellumbeak ca. 2 mm; stipe ca. 2 mm. Fl. Mar.Epiphytic on trees or lithophytic on rocks in mixed forests; 200–500 m. Hainan [Vietnam].148. DORITIS Lindley, Gen. Sp. Orchid. Pl. 178. 1833.五 唇 兰 属 wu chun lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, terrestrial or lithophytic, monopodial. Stems erect, short, rooting at base. Leaves several, subbasal, distichous, flat, fleshy,base articulate and sheathing. Inflorescence arising laterally from base of stem, erect, racemose, laxly several to many flowered.