ORCHIDACEAE - China

282EPIDENDROIDEAE7b. Pseudobulb ± conic, erect; petiole with an articulation ± halfway; keelsincreasing in height uninterruptedly toward tip of lip; sepals and petalsdull reddish yellow ............................................................................................................ 7. T. ruybarrettoi2b. Pseudobulbs thin, cylindric, sometimes swollen toward base, usually consisting of 1 internode;inflorescence terminal; lip at most very slightly saccate; petiole with an articulation.8a. Lip entire .......................................................................................................................................................... 8. T. emeiensis8b. Lip 3-lobed.9a. Inflorescence arising directly from a node.10a. Mature plant less than ca. 15 cm high excluding inflorescence; leaves mottled and tessellate ...... 9. T. laxiflora10b. Mature plant usually well over 25 cm high, rarely smaller; leaves uniformly colored ..................... 10. T. dunnii9b. Inflorescence arising at least 2 mm above a node.11a. Lip with 5 lamellae on mid-lobe .......................................................................................................... 11. T. minor11b. Lip with 3 lamellae.12a. Lip elliptic to ovate, shorter than 20 mm; column foot shorter than 3 mm ............................ 12. T. latifolia12b. Lip rhombic-hastate, longer than 30 mm; column foot longer than 10 mm ...................... 13. T. macrantha1. Tainia cordifolia J. D. Hooker, Hooker’s Icon. Pl. 19: ad t.1861. 1889.心 叶 带 唇 兰 xin ye dai chun lanMischobulbum cordifolium (J. D. Hooker) Schlechter;Tainia fauriei Schlechter.Pseudobulbs ca. 8 cm × 3–4 mm, petiole-like, becomingthinner toward base, often ± enclosed in 2 tubular sheaths. Leafsessile, abaxially with grayish white stripes, adaxially dirtygreen with deep green blotches, ovate-cordate, 7–15 × 4–8 cm,fleshy, main veins 3, base cordate, apex acute. Inflorescenceerect; peduncle to 25 cm, with 2 or 3 tubular sheaths; rachis ca.6 cm, 3–5-flowered; floral bracts ca. 7 mm, narrowly lanceolate,acuminate. Flowers large; sepals and petals brown withpurplish brown stripes, lip lateral lobes white and spotted withpurplish red, mid-lobe yellow, with purple spots along margin,lamellae yellow, column with purplish red spots; pedicel andovary 1.5–1.8 cm. Sepals similar, lanceolate, ca. 22 × 4–5mm, 3-veined, acuminate; lateral sepals adnate to column footforming a broad mentum. Petals lanceolate, ca. 20 × 6–7 mm,5-veined; lip subovate, 2.5–3 cm, slightly 3-lobed; lateral lobesnearly subovate; mid-lobe reflexed, subtriangular, apex acute;disk with 3 lamellae running from base to apex of mid-lobe;lateral lamellae arcuate. Column ca. 1 cm, broadly winged; footca. 1.4 cm. Fl. May–Jul.Damp places in forests along valleys; 500–1000 m. Fujian, Guangdong,Guangxi, Taiwan, SE Yunnan [Vietnam].2. Tainia longiscapa (Seidenfaden ex H. Turner) J. J. Wood &A. L. Lamb, Malesian Orchid J. 2: 54. 2008.卵 叶 带 唇 兰 luan ye dai chun lanMischobulbum longiscapum Seidenfaden ex H. Turner,Orchid Monogr. 6: 67. 1992; M. ovifolium (Z. H. Tsi & S. C.Chen) Averyanov; Tainia ovifolia Z. H. Tsi & S. C. Chen.Pseudobulbs close, purplish, narrowly ovoid, ca. 4 cm,base ca. 1.5 cm in diam. Petiole ca. 3 mm; leaf blade abaxiallypurple, adaxially deep green, broadly ovate, 4.5–7 × 3–5 cm,somewhat fleshy or thickly leathery, base rounded, apex acute.Inflorescence erect; peduncle ca. 18 cm, 2–3 mm in diam., nearmiddle with 1 membranous tubular sheath; rachis 4- or 5-flowered;floral bracts narrowly lanceolate, ca. 1 cm, acuminate.Flowers yellowish green; pedicel and ovary ca. 1 cm. Dorsalsepal lanceolate, ca. 12 × 2 mm, 3-veined, long acuminate; lateralsepals similar to dorsal sepal, base adnate to column footforming a conspicuous mentum. Petals similar to sepals inshape, ca. 12 × 1.2 mm, 3- or 4-veined, acute; lip obovate, 3-lobed near middle; lateral lobes ovate-triangular, small, ca. 7mm wide at apex, acute; mid-lobe obovate, ca. 6 mm wide,mucronate; disk with 3 lamellae, median smaller. Column ca. 4mm; foot ca. 0.4 mm. Fl. Mar.Rocky places in evergreen broad-leaved forests; 600–1200 m.Hainan (Changjiang), S Yunnan [Thailand, N Vietnam].3. Tainia hongkongensis Rolfe, Bull. Misc. Inform. Kew 1896:195. 1896.香 港 带 唇 兰 xiang gang dai chun lanAnia hongkongensis (Rolfe) Tang & F. T. Wang; Ascotainiahongkongensis (Rolfe) Schlechter.Pseudobulbs ovoid, 1–2 cm in diam., sheathing whenyoung. Petiole 13–16 cm, slender, base with 1 tubular sheath ca.6 cm; leaf blade oblong, ca. 26 × 3–4 cm, plicate, apex acuminate.Inflorescence erect; peduncle to 50 cm, ca. 3 mm in diam.,with 4 tubular sheaths below inflorescence; rachis to 15 cm,laxly several flowered; floral bracts narrowly lanceolate, 6–12mm, membranous, long acuminate. Flowers: pedicel and ovarypurplish brown, sepals and petals yellowish green with purplishbrown spots and stripes, lip white with yellowish green stripes,anther cap with 2 purple cornute appendages, column white,tinged with purple; pedicel and ovary ca. 15 mm. Sepals similar,oblong-lanceolate, ca. 20 × 2.2–3.5 mm, 5-veined, acuminate;lateral sepals adnate to column base. Petals obovate-lanceolate,ca. 20 × 3 mm, 5-veined, base contracted, apex acuminate;lip obovate, ca. 11 × 6 mm, ± embracing column belowmiddle, spurred at base, entire, mucronate; disk with 3 narrowlamellae; spur projecting beyond base of lateral sepals, suboblong,ca. 3 × 2.5 mm. Column ca. 7 mm, slightly dilated towardapex. Fl. Apr–May.Wooded slopes or open places in hilly areas; 100–500 m. S Fujian,S Guangdong [Vietnam].4. Tainia angustifolia (Lindley) Bentham & J. D. Hooker, Gen.Pl. 3: 515. 1883.狭 叶 带 唇 兰 xia ye dai chun lan