齿唇兰（横断山区维管植物）云南齿唇兰（中国高等
植物图鉴）、二囊开唇兰（台湾植物志）、二囊齿唇兰
（台湾兰科植物）、黄花齿唇兰（台湾兰科植物
彩色图鉴）白线开唇兰（中国兰花全书）
Anoectochilus lanceolatus Lindl. , Gen. Sp. Orch. Pl. 499. 1840; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 295, t. 392. 1898; Seidenf. in Dansk Bot. Ark, 32(2): 46, fig. 22. 1978;台湾植物志5: 876. 1978;横断山区维管植物2: 2563. 1994——Odontochilus lanceolatus(Lindl. )Bl. , Coll. Orch. Arch. Ind. 80, t. 29, fig. 2 et 36A. 1858; H. Hara et al. , Enum. Flow. Pl. Nepal 1: 51. 1978. ——Odontochilus yunnanensis Rolfe in J. Linn. Soc. Bot. 36: 43. 1903; 中国高等植物图鉴5: 665, 图8159. 1976. ——Odontochilus bisaccatus Hayata, Icon. Pl. Formos. 4: 99, pl. 15. 1914;台湾兰科植物1: 214-215(图). 1976; 台湾兰科植物彩色图鉴1: 260, 图96. 1977 et 2: 614. 1990. ——Odontochilus densiflorus(Mansf. )T. Tang et F. T. Wang ex Merr. et Metc. in Lingn. Sci. J. 21: 12. 1945, syn, nov. ——Anoectochilus bisaecatus Hayata, Icon. Pl. Formos. 4: 99, pl. 15. 1914;台湾兰科植物彩色图志1: 56. 1996. ——Anoectochilus densiflorus Mansf. in Fedde Repert. Sp. Nov. 27: 294. 1930, syn, nov. ——Pristiglotlis bisaccatus(Hayata)Nackejima in Biol. Mag. Okinawa 13: 3. 1975.
Damp places in evergreen broad-leaved forests, valleys; 800-2200 m. Guangdong, Guangxi, C Taiwan, Yunnan [Bhutan, NE India, Myanmar, Nepal, Thailand, Vietnam]. |
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Plants 15-30 cm tall. Stem ascending, green-brown, 4- or 5-leaved. |
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Leaves abaxially pale green, adaxially dark green with whitish stripes along midvein and 2 lateral veins, ovate, ovate-lanceolate, or elliptic, 1.5-8 × 1-5 cm, apex acute; petiole-like base and tubular sheath 0.9-2 cm. |
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Peduncle 4-6 cm, pubescent, with 1 or 2 sheathing sterile bracts; rachis 4-6 cm, subdensely 3-10-flowered, pubescent; floral bracts lanceolate to ovate-lanceolate, 8-10 mm, subequal in length to ovary, abaxially glabrous, ciliate along basal margin, apex acuminate. Flowers resupinate, yellow; ovary and pedicel twisted, fusiform, 9-10 mm, glabrous. Sepals yellowish green, glabrous, 1-veined; dorsal sepal forming a hood with petals, ovate to ovate-oblong, cymbiform, 4-6 × 3-4 mm; lateral sepals spreading, ovate-elliptic, oblique, 6-7.5 × 4-5 mm, apex acute to slightly obtuse. Petals whitish green, ovate, strongly oblique, 4-6 × 2.5-4 mm, 1-veined; lip golden yellow, Y-shaped, 12-18 mm; hypochile slightly dilated, bisaccate, ca. 3 mm, containing a central longitudinal septum and 1 subulate, usually curved callus on either side; mesochile 4-6 mm, with a pectinate flange along either margin; flanges composed of 4-7(-9) obtuse teeth to ca. 2.5 mm; epichile transversely dilated, 2-lobed; lobes diverging widely, cuneate-oblong to obovate, 5-6 × 4-4.5 mm, margin entire or slightly crenulate, apex truncate. Column very short, squat, with 2 deltoid wings toward apex; rostellum twisted, broad, remnant bifid; stigma lobes separate, large. Fl. Jun-Sep. |
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