ORCHIDACEAE - China

EPIDENDROIDEAE 4771. Saccolabiopsis taiwaniana S. W. Chung & T. C. Hsu,Taiwan Quart. J. Forest Res. 28(3): 27. 2006.台 湾 拟 囊 唇 兰 tai wan ni nang chun lanStems abbreviated. Roots few, ca. 1 mm in diam. Leaves3–5, pale green, obliquely lanceolate, 1.3–2 × 0.4–0.7 cm,leathery, obtusely bilobed. Inflorescence racemose, ca. 4 cm,curving, many flowered; peduncle generally shorter than rachis;rachis ca. 1 mm in diam., thickest at middle, 13–19-flowered.Flowers ca. 3 mm in diam., widely opening; sepals and petalsslightly incurved, translucent green; lip white; anther cap yellowish.Dorsal sepal oblong-ovate, ca. 2 × 0.8 mm, obtuse; lateralsepals similar to dorsal sepal, slightly oblique. Petals oblong,slightly shorter than sepals, obtuse; lip broadly triangular,ca. 2 × 0.7 mm, margin entire, obtuse, concave. Column ca. 0.7mm, with narrow apical wings. Seed capsule linear-cylindric,ca. 1.5 cm.● Epiphytic on Beilschmiedia tsangii (Lauraceae) in broad-leavedforests in semishade; 400–500 m. Taiwan.2. Saccolabiopsis wulaokenensis W. M. Lin, Kuo Huang & T.P. Lin, Taiwania 51: 165. 2006.拟 囊 唇 兰 ni nang chun lanStems 3–6 cm. Leaves distichous, 3–8, oblong-lanceolate,slightly curved, 2.2–5 × 0.6–1.2 cm. Inflorescence axillary,simple, pendulous; peduncle and rachis 3–7 cm, dilated in middlepart, ca. 2 mm in diam., tapering at both ends, sulcate,bearing 10–35 well-spaced flowers; floral bracts triangular, ca.2 mm. Flowers whitish green, 2.5–3.5 mm in diam.; lip midlobewhite. Sepals oblong, 2–2.5 mm. Petals subspatulate, ca.2 mm; lip shallowly 3-lobed, ca. 1.5 mm wide; lateral lobesrounded; mid-lobe subovate or triangular, saccate at base, withoutinterior ornamentation. Column ca. 1 mm, foot absent; stigmadeeply set underneath; rostellum conspicuous; pollinia 2 onlong stipe. Seed capsule clavate, 1.7–1.9 cm.● Epiphytic on branches of trees in broad-leaved forests; ca. 300m. Taiwan.175. PAPILIONANTHE Schlechter, Orchis 9: 78. 1915.凤 蝶 兰 属 feng die lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Jeffrey J. WoodHerbs, epiphytic, scrambling, monopodial. Stems erect to pendulous, climbing or pendulous, elongate, terete, branching orunbranched, many noded, laxly many leaved. Leaves terete, fleshy, channeled adaxially, jointed and sheathing at base; sheathsthickly leathery, tightly enclosing stem, persistent. Inflorescence axillary, 1- to several flowered. Flowers flat, large. Sepals and petalssubsimilar, free, spreading. Petals usually larger; lip continuous with column foot, immovable, spurred, 3-lobed; lateral lobes ± erect,either parallel to or embracing column; mid-lobe often dilated and 2- or 3-lobed at apex; spur funnel-shaped or conic to long hornshaped.Column subterete, short, fleshy, foot short; rostellum elongate, slender; pollinia waxy, 2, shortly cleft, attached by a broadlytriangular or subquadrate stipe to a large viscidium.About 12 species: China, India, SE Asia and the Malay Archipelago; four species (one endemic) in China.1a. Lip saccate or shortly spurred at base; spur or sac 2–2.5 mm; petals 7–10 mm wide .............................................. 3. P. taiwaniana1b. Lip spurred at base; spur 20–25 mm; petals 15–17 mm wide.2a. Lateral lobes of lip entire, embracing column, lip deep purplish red; dorsal sepal ca. 2 cm wide ............................... 1. P. teres2b. Lateral lobes of lip bilobulate, lip color not as above; dorsal sepal 0.8–1.5 cm wide.3a. Lobules of lateral lobes not serrate-denticulate; lip creamy white, sometimes tinged with pale pink ........ 2. P. biswasiana3b. Lobules of lateral lobes serrate-denticulate; lip with a purple-flushed base and spur ................................... 4. P. vandarum1. Papilionanthe teres (Roxburgh) Schlechter, Orchis 9: 78.1915.凤 蝶 兰 feng die lanDendrobium teres Roxburgh, Fl. Ind., ed. 1832, 3: 485.1832; Vanda teres (Roxburgh) Lindley.Stems scrambling, terete, usually to 1 m, stout, branching.Leaves well spaced, terete, 8–18 cm × 4–5 mm, fleshy, obtuse.Inflorescence slightly longer than leaf, laxly 2–5-flowered; pedunclestout, with 3 or 4 membranous sheaths; floral bractsbroadly ovate, 4–6 mm, slightly fleshy, obtuse. Flowersopening widely, 4–10 cm in diam., thinly textured, sepals andpetals white, tinged with pink or purplish, lip deep purple-red,spur yellowish brown; pedicel and ovary white, 2–3 cm. Dorsalsepal broadly elliptic, ca. 2.5 × 2 cm, obtuse-rounded; lateralsepals obliquely ovate-oblong, ca. 3 × 2 cm, base adnate tocolumn foot, apex obtuse. Petals suborbicular, large, ca. 3 ×2.7 cm, obtuse; lip spurred, 3-lobed; lateral lobes embracingcolumn, subobovate, ca. 1.5 cm wide, rounded; mid-lobespreading, obovate-triangular, ca. 2 cm, adaxially shortly hairy,deeply bilobed; spur conic, ca. 2 cm. Column ca. 5 mm, foot ca.5 mm. Fl. May–Jun. 2n = 38, 40.Epiphytic on tree trunks in open forests or at forest margins; 500–900 m. S Yunnan [Bangladesh, Bhutan, India, Laos, Myanmar, Nepal,Thailand, Vietnam].2. Papilionanthe biswasiana (Ghose & Mukerjee) Garay, Bot.Mus. Leafl. 23: 371. 1974.白 花 凤 蝶 兰 bai hua feng die lanAerides biswasiana Ghose & Mukerjee, Orchid Rev. 53:124. 1945.Stems erect or pendulous, terete, to 50 cm or longer, stout,5–7 mm in diam., often unbranched, internodes 3–4 cm. Leaves