ORCHIDACEAE - China

378EPIDENDROIDEAEsubconic, densely finely papillate, front margin irregularly dentate.Capsule ovoid, ca. 3 × 1.3–1.6 cm.Epiphytic on tree trunks in open forests; 1300–1900 m. SE to WYunnan [?Bhutan, NE India, Myanmar, N Thailand, N Vietnam].17. Dendrobium gratiosissimum H. G. Reichenbach, Bot.Zeitung (Berlin) 23: 99. 1865.杯 鞘 石 斛 bei qiao shi huCallista boxallii (H. G. Reichenbach) Kuntze; C. gratiosissima(H. G. Reichenbach) Kuntze; Dendrobium boxallii H. G.Reichenbach; D. bullerianum Bateman.Stems pendulous, cylindric, to 50 cm, ca. 5 mm in diam.,fleshy, with many swollen nodes, upper part ± upcurved, internodes2–2.5 cm, pale yellow when dry. Leaves oblong, 8–11× 1.5–1.8(or more) cm, leathery, base with clasping sheath,apex slightly obtuse and hooked on one side; leaf sheath paperywhen dry, sheath mouth open cupular. Inflorescence on old leaflessstems, 1- or 2-flowered; peduncle 3–5 mm; basal sheaths 2or 3, pale white when dry, broadly ovate, 3–5 mm, papery, obtuse;floral bracts broadly ovate, 7–10 mm, papery, apex obtuse.Pedicel and ovary pale purple, ca. 2 cm. Flowers fragrant,spreading, papery; sepals and petals white with pale purple tips,lip with many purplish red stripes on each side, disk with a paleyellow transverse semilunar central blotch, column white, frontside with purple stripes, anther cap white. Dorsal sepal ovatelanceolate,23–25 × 7–8(or more) mm, 7-veined, apex acute orslightly obtuse; lateral sepals suborbicular, equal in size, 7-veined, base oblique, apex acute; mentum subglobose, small,ca. 3 mm. Petals obliquely ovate, 23–25 × 13–14 mm, mainveins 5, secondary veins many, base contracted into a shortclaw, margin entire, apex obtuse; lip nearly broadly obovate, ca.23 × 20 mm, adaxially densely barbellate, base cuneate, marginciliate, apex rounded. Column ca. 4 mm; anther cap subconic,densely finely papillate, front margin irregularly dentate. Capsuleovoid, ca. 3 × 1.3–1.6 cm.Epiphytic on tree trunks in open forests; 800–1700 m. S Yunnan[NE India, Laos, Myanmar, N Thailand, Vietnam].18. Dendrobium pendulum Roxburgh, Fl. Ind., ed. 1832, 3:484. 1832.肿 节 石 斛 zhong jie shi huCallista crassinodis (Benson ex H. G. Reichenbach)Kuntze; C. pendula (Roxburgh) Kuntze; Dendrobium crassinodeBenson ex H. G. Reichenbach.Stems ascending or pendulous, cylindric, usually 22–40cm, 1–1.6 cm in diam., fleshy and thick, unbranched, moniliformwith many swollen nodes, internodes 2–2.5 cm, pale yellowtinged with gray when dry. Leaves oblong, 9–12 × 1.7–2.7cm, leathery, base with clasping sheath, apex acute; leaf sheaththinly leathery, sheath mouth ± open when dry. Inflorescencesoften arising from upper part of deciduous stems, 1–3-flowered;peduncle somewhat thick and short, 2–5 mm; basal sheaths 1 or2, tubular, ca. 6 mm; floral bracts pale white, broadly ovate, ca.8 mm, papery, apex obtuse. Pedicel yellowish green; ovary palepurplish red, 3–4 cm. Flowers scented, spreading, large, waxywhen dry; sepals and petals white, tipped purplish red, men-tum purplish red, lip white, golden yellow below middle, upperpart purplish red. Dorsal sepal oblong, ca. 30 × 10 mm, 5-veined, acute; lateral sepals similar in size and shape, 5-veined,base slightly oblique, apex acute; mentum subconic, ca. 5 mm.Petals broadly oblong, ca. 30 × 15 mm, 6-veined, secondaryveins many, base subcuneately narrowed, margin denticulate,apex obtuse; lip suborbicular, ca. 25 mm, very shortly clawed,both sides embracing column below middle, margin ciliate,both surfaces pubescent. Column ca. 4 mm, lower part enlarged,abaxially slightly finely papillate; anther cap subconic,finely papillate-hairy, apex slightly narrowed and subtruncateand eroded.Epiphytic on tree trunks in open forests; 1000–1600 m. S Yunnan[NE India, Laos, Myanmar, N Thailand, Vietnam].19. Dendrobium findlayanum E. C. Parish & H. G. Reichenbach,Trans. Linn. Soc. London 30: 149. 1874 [“findleyanum”].棒 节 石 斛 bang jie shi huCallista findlayana (E. C. Parish & H. G. Reichenbach)Kuntze.Stems erect or ascending, ca. 20 cm, 7–10 mm in diam.,unbranched, with several nodes, internodes compressed clavateor clavate, 3–3.5 cm, base often with persistent papery leafsheaths. Leaves alternate on upper part of stem, lanceolate, 5.5–8 × 1.3–2 cm, leathery, base with clasping sheath, apex slightlyobtuse and unequally bilobed. Inflorescences from old stemsafter leaves have fallen, 2-flowered; peduncle 6–16 cm; basalsheaths ca. 5 mm, membranous; floral bracts ovate-triangular,ca. 6 mm, membranous. Pedicel and ovary pale rose, 5–6 cm.Flowers spreading; sepals and petals white with roseate tip, lipbase roseate, with purplish red stripes on both sides, disk goldenyellow at center, column with purplish red stripes at front, anthercap white. Dorsal sepal oblong-lanceolate, 35–37 × ca. 9mm, 5-veined, subobtuse to acute; lateral sepals ovate-lanceolate,35–37 × ca. 9 mm, 5-veined, apex subacute; mentumsubcylindric, ca. 5 mm. Petals broadly oblong, 35–37 × ca. 18mm, 5-veined, base shortly clawed, apex acute; lip suborbicular,concave, ca. 24 mm wide, densely pubescent, acute. Columnca. 8 mm; anther cap bluntly rounded.Epiphytic on tree trunks in open forests; 800–900 m. S Yunnan(Mengla) [N Laos, Myanmar, N Thailand].This species was named after its collector, Mr. James Findlay (E.C. Parish in F. Mason, Burmah, ed. [4], 2: 159. 1883). The spelling usedin the protologue must therefore be treated as an orthographical error.20. Dendrobium parishii H. G. Reichenbach, Bot. Zeitung(Berlin) 21: 236. 1863.紫 瓣 石 斛 zi ban shi huCallista parishii (H. G. Reichenbach) Kuntze; Dendrobiumpolyphlebium H. G. Reichenbach.Stems ascending or pendulous, cylindric, usually 10–30cm or longer, stout, 1–1.3 cm in diam., upper part ± curved,unbranched, with several nodes, internodes to 4 cm. Leavesnarrowly oblong, 7.5–12.5 × 1.6–1.9 cm, leathery, apex obtuseand unequally bilobed; leaf sheath white, membranous. Inflo-