ORCHIDACEAE - China

76ORCHIDOIDEAEIncompletely known speciesZeuxine niijimae Tatewaki & Masamune, Bot. Mag. (Tokyo)46: 772. 1932 [“niijimai”].眉 原 线 柱 兰 mei yuan xian zhu lanPlants ca. 20 cm tall, slender. Rhizome ascending. Stem 2-leaved. Leaves ovate-lanceolate, slightly oblique, ca. 2.5 × 1.5cm, membranous, base rounded, apex acute; petiole-like baseca. 0.7 cm including tubular sheath. Rachis ca. 2 cm, 2- or 3-flowered; floral bracts ovate-lanceolate, ca. as long as ovary,apex acuminate. Flowers small. Dorsal sepal ovate, concave, ca.6 mm, apex acuminate; lateral sepals obliquely ovate, ca. 5 × 2mm, 1- or 3-veined, apex obtuse. Petals ovate-deltoid, ca. 5 ×2.5 mm, apex acute; lip Y-shaped, ca. 4 mm; epichile 2-lobed;lobes obliquely orbicular, ca. 2 × 1.5 mm. Column ca. 2 mm.Fl. Apr.● C Taiwan.The type material has not been seen by us. This taxon is possiblyconspecific with Zeuxine affinis.Zeuxine kantokeiensis Tatewaki & Masamune, Bot. Mag.(Tokyo) 46: 772. 1932.关 刀 溪 线 柱 兰 guan dao xi xian zhu lanPlants ca. 30 cm tall, slender. Leaves withered at anthesis.Inflorescence 9–21 cm, pubescent, with a few sterile bracts;sterile bracts ovate-deltoid, ca. 10 × 3 mm, apex acuminate;rachis 3–9 cm; floral bracts ovate, ca. 4 × 2 mm, apex acuteacuminate.Flowers sublaxly arranged, small; ovary ovoid, ca. 3mm including pedicel. Dorsal sepal ovate, concave, ca. 3 mm,outer surface pubescent, 1-veined, apex acute to obtuse; lateralsepals obliquely ovate, ca. 2 × 1 mm, 3-veined, apex acute toobtuse. Petals oblong, ca. 2 × 1 mm, glabrous, apex obtuse; lipT-shaped; epichile 2-lobed; lobes ca. 1.3 × 1 mm, apex obtuse.Column ca. 1 mm; rostellum arms linear, ca. 1 mm. Fl. Apr.● C Taiwan.The type material has not been seen by us. This taxon is possiblyconspecific with Zeuxine parvifolia.17. VRYDAGZYNEA Blume, Coll. Orchid. 71; Fl. Javae Nov. Ser. 1: 59. 1858–1859.二 尾 兰 属 er wei lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Stephan W. Gale, Phillip J. CribbHerbs, terrestrial or rarely epiphytic. Rhizome elongate or short, ascending, cylindric, fleshy, with nodes bearing several slenderroots. Stem erect or ascending, leafy. Leaves ovate, slightly fleshy, with a short petiole-like base sheathing stem. Inflorescence erect,terminal, racemose, densely several to many flowered. Flowers resupinate, not fully opening, medium-sized or small; ovary twisted,cylindric-fusiform, pubescent. Sepals subequal; dorsal sepal and petals forming a hood; lateral sepals free, spreading. Lip short,triangular-ovate, obscurely 3-lobed, spurred at base; spur conic to fusiform, large, projecting between base of lateral sepals,containing 2 stalked glands near base. Column very short, stout; anther erect, on dorsal side of column, 2-locular; pollinia 2,granular-farinaceous, narrowly obovoid, attenuate at base, attached to a large ovate-oblong viscidium; rostellum short, erect, remnantshortly bifid; stigma 2-lobed; lobes separate, raised, protruding beyond sides of rostellum.About 35 species: India to the Pacific islands; one species in China.1. Vrydagzynea nuda Blume, Coll. Orchid. 71. 1858–1859.二 尾 兰 er wei lanVrydagzynea albida Blume var. formosana (Hayata) T.Hashimoto; V. formosana Hayata.Plants terrestrial, 5–18 cm tall. Leaves 5–7, deep green,ovate to ovate-elliptic, 2–3.5 × 0.7–2.5 cm, base broadly truncateor subrounded, apex acute; petiole-like base 1–1.5 cm.Rachis 2–5 cm, 3–10-flowered, pubescent; floral bracts triangularto ovate-lanceolate, 8–9 × 3.5–4 mm, abaxially pubescent,apex acuminate. Flowers white or greenish white; ovary andpedicel 6–8 mm. Sepals white or pale green, abaxially pubescentat base, fleshy at apex; dorsal sepal narrowly ovate-oblong,cymbiform, 5–6 × 1.5–2.5 mm, apex obtuse; lateral sepalsovate-lanceolate, oblique, 5–6 × 2–3 mm, apex obtuse. Petalswhite, linear to narrowly ovate, 4.5–5 × 0.8–2.3 mm, apex obtuse;lip white, erect, oblong-elliptic or obovate, concave, 3–4 ×2.5–3.5 mm, apex rounded-bifid; spur pendulous, parallel toovary, conic-cylindric, 4–5 × 1.5–2.5 mm, apex obtuse andshallowly 2-lobed. Column erect, 3-lobed, ca. 2 mm; rostellumflat, apex forming a viscidium. Fl. Mar–May.Damp forests and humid places along valleys; 300–700 m. Hainan,Hong Kong, C and N Taiwan [Indonesia (Java), Malay Archipelago(Borneo)].18. ANOECTOCHILUS Blume, Bijdr. 411. 1825 [“Anecochilus”], nom. cons.金 线 兰 属 jin xian lan shuChen Xinqi ( 陈 心 启 Chen Sing-chi); Stephan W. Gale, Phillip J. Cribb, Paul OrmerodChrysobaphus Wallich.Herbs, terrestrial. Rhizome creeping, terete, several noded, fleshy; roots narrowly filiform to fibrous, villous, arising singly fromrhizome nodes. Stem erect or ascending, with 1 to a few loose tubular sheaths at base, and a few clustered subrosulate leaves, glabrous.Leaves green to purplish black with white, pinkish, or golden reticulate venation on adaxial surface, ovate or elliptic, velvetyand often slightly fleshy, with a long petiole-like base dilating into tubular amplexicaul sheath. Inflorescence erect, terminal, race-