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● Epiphytic on tree trunks at forest margins and in open forests;<br />
700–2000 m. W Sichuan, S and SW Yunnan.<br />
2. Chiloschista guangdongensis Z. H. Tsi, Acta Phytotax. Sin.<br />
22: 481. 1984.<br />
广东异型兰 guang dong yi xing lan<br />
Stems very short, with many long flattened roots, leafless.<br />
Inflorescences 1 or 2, pendulous, racemose, laxly several flowered;<br />
rachis and peduncle 1.5–6 cm, ca. 1 mm in diam., densely<br />
pubescent; floral bracts 3–3.5 mm, ovate-lanceolate, glabrous,<br />
membranous, acute. Flowers yellow, glabrous; pedicel and<br />
ovary ca. 5 mm, densely pubescent. Dorsal sepal ovate, ca. 5 ×<br />
3 mm, 5-veined, rounded; lateral sepals subelliptic, ca. 5 × 3<br />
mm, 4-veined, rounded. Petals ovate, ca. 4.5 × 2.5 mm, 3veined;<br />
lip 3-lobed; lateral lobes erect, suborbicular; mid-lobe<br />
ovate-triangular, nearly as large as lateral lobes, slightly<br />
concave centrally, with a spongy appendage adaxially, apex<br />
rounded. Column ca. 1.5 mm, foot ca. 3 mm; anther cap shortly<br />
beaked at apex, with 2 filiform appendages on both sides. Capsule<br />
straight, cylindric, ca. 2 cm × 4 mm. Fl. Apr, fr. May–Jun.<br />
● Epiphytic on tree trunks in evergreen broad-leaved forests. N<br />
Guangdong.<br />
3. Chiloschista segawae (Masamune) Masamune & Fukuyama,<br />
Bot. Mag. (Tokyo) 52: 247. 1938 [“segawai”].<br />
EPIDENDROIDEAE<br />
台湾异型兰 tai wan yi xing lan<br />
471<br />
Sarcochilus segawae Masamune, Trans. Nat. Hist. Soc.<br />
Formosa 24: 212. 1934 [“segawai”]; Chiloschista hoi S. S.<br />
Ying; C. segawae f. taiwaniana (S. S. Ying) S. S. Ying; C.<br />
segawae var. taiwaniana S. S. Ying.<br />
Stems inconspicuous, leafless, with roots to 35 cm. Inflorescence<br />
often pendulous, racemose, 5–15 cm, 6–15-flowered;<br />
peduncle and rachis densely pubescent; floral bracts ovatetriangular,<br />
3–5 mm, membranous, glabrous or sparsely pubescent.<br />
Flowers slightly fleshy, whitish green or yellow, sometimes<br />
with brownish red patches near base of sepals and petals,<br />
lateral lobes of lip striped brown; pedicel and ovary 4–5 mm,<br />
pubescent. Dorsal sepal nearly broadly elliptic, 3–5 × 2.5–4<br />
mm, glabrous or sparsely pubescent abaxially, subobtuse; lateral<br />
sepals slightly oblique, broadly ovate or elliptic, 4.5–6 ×<br />
3.5–4 mm, sparsely pubescent near abaxial base. Petals elliptic,<br />
4–6 × 3.5–4 mm, obtuse; lip 5–6 mm, base saccate, 3-lobed;<br />
lateral lobes erect, falcate-oblong, rounded; mid-lobe very small,<br />
thick, retuse, base with a longitudinal callus running into bottom<br />
of sac; callus bilobed, pubescent, grooved; sac 2–3 mm.<br />
Column ca. 1 mm, foot ca. 3 mm; anther cap with 2 filiform<br />
appendages on both sides. Fl. Apr–May.<br />
● Epiphytic on tree trunks in forests; 700–1000 m. S Taiwan.<br />
170. VANDA Jones ex R. Brown, Bot. Reg. 6: ad t. 506. 1820.<br />
万代兰属 wan dai lan shu<br />
Chen Xinqi (陈心启 Chen Sing-chi); Alexandra Bell<br />
Herbs, epiphytic, monopodial. Stems ascending or rarely arching, usually rather long, stout, rigid, with short internodes and<br />
many distichous leaves, with thick roots in lower part. Leaves distichous, flat, narrow, often closely spaced, linear to lorate, conduplicate<br />
toward base, with amplexicaul-sheathing base, jointed. Inflorescences erect or suberect, racemose, axillary, usually ascending,<br />
sparsely few to many flowered. Flowers large or medium-sized, usually colorful and long-lasting. Sepals and petals similar or<br />
sepals wider, often narrowed toward base, margins ± twisted or wavy, often tessellated; lip attached to an indistinct column foot,<br />
immobile, shortly spurred, 3-lobed; lateral lobes erect, small; mid-lobe large, usually with longitudinal keels or swellings adaxially.<br />
Column short, stout; rostellum short; anther cap subglobose; pollinia 2, subglobose, waxy, each strongly cleft or porate, attached by a<br />
common short stipe to a large viscidium.<br />
About 40 species: tropical Asia to New Guinea and Australia; ten species (one endemic) in China.<br />
Vanda testacea (Lindley) H. G. Reichenbach (Gard. Chron., n.s., 8: 166. 1877; Aerides testacea Lindley, Gen. Sp. Orchid. Pl. 238. 1830,<br />
“testaceum”) was noted from China (without precise locality) by Pearce and Cribb (Orchids Bhutan, 577. 2002). However, the present authors found<br />
no relevant specimens and therefore could not substantiate the occurrence of this species in China. Vanda testacea otherwise occurs in Bhutan, India,<br />
Myanmar, Sri Lanka, and Thailand.<br />
1a. Inflorescence taller than leaves, at least 20 cm.<br />
2a. Sepals and petals blue or tinged with blue; mid-lobe of lip oblanceolate or ligulate.<br />
3a. Flowers 1.5–2.5 cm in diam.; sepals and petals not tessellated; sepals 10–17 mm .................................. 5. V. coerulescens<br />
3b. Flowers 6–9 cm in diam.; sepals and petals tessellated; sepals 35–50 mm ..................................................... 2. V. coerulea<br />
2b. Sepals and petals yellowish or greenish, with brown markings; mid-lobe of lip pandurate.<br />
4a. Lip as long as or longer than sepals; lateral lobes of lip ovate or triangular ............................................. 10. V. fuscoviridis<br />
4b. Lip shorter than sepals; lateral lobes of lip suborbicular, apex rounded to truncate ....................................... 4. V. lamellata<br />
1b. Inflorescence shorter than leaves, less than 20 cm.<br />
5a. Inflorescence ca. 8 cm or more in length; sepals and petals distinctly tessellated.<br />
6a. Lip shorter than lateral sepals; calli 2 on lip near entrance to spur ................................................................... 1. V. brunnea<br />
6b. Lip as long as or longer than sepals; calli absent on lip.<br />
7a. Bracts 3–5 mm; spur 7–8 mm .................................................................................................................... 3. V. concolor<br />
7b. Bracts 2.5–3 mm; spur 2.5–3.5 mm ..................................................................................................... 6. V. subconcolor<br />
5b. Inflorescence shorter than 8 cm; sepals and petals not tessellated.<br />
8a. Flowers ca. 2 cm in diam. or less, not widely opening; lip spurless .................................................................... 8. V. alpina