紫纹兜兰（中国野生兰彩色图谱）
Paphiopedilum purpuratum (Lindl.) Stein, Orchideenbuch 487. 1892; Pfitz. in Engler, Bot. Jahrb. 19: 40. 1894, et in Engler, Pflanzenreich IV (50) Heft 12: 86. 1903; Rolfe in J. Linn. Soc. Bot. 36: 67. 1903; Schltr. in Fedde Repert. Sp. Nov. Beih. 4: 86. 1919; S. Y. Hu in Quart. J. Taiwan Mus. 27 (3-4) : 456. 1974; Karasawa, Genus Paphiopedilum 206, 208 (fig. ) . 1982; Cribb, Genus Paphiopedilum 205. 1987; F. Mark in Orch. Dig. 51: 68. 1987; Braem, Paphiopedilum 179. 1988; Seidenf. in Opera Bot. 114: 20. 1992; Averyanov, Iden. Guide Vietnam. Orch. 21. 1994; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China 28. pl. 23. 1997;中国兰花全书124.图6-4 (3) . 彩图6-20. 1998. ——Cypripedium purpuratum Lindl. in Edward's Bot. Reg. 23: t. 1991. 1837, et Gen. Sp. Orch. Pl. : 530, 1840; Hook. in Curtis's Bot. Mag. 82: t. 4901. 1856. ——Cypripedium sinicum Hance ex Rchb. f. in Walp. Ann. 3: 602. 1853. ——Paphiopedilum sinicum (Hance ex Rchb. f. ) Stein, Orchideenbuch: 481. 1892.
Rocky places in forests or thickets along valleys; 100-1200 m. S Guangdong, S Guangxi, Hainan, SE Yunnan [N Vietnam]. |
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Plants terrestrial. |
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Leaves 4-6, distichous; blade pale green and carinate abaxially, distinctly or obscurely tessellated with dark and light green adaxially, narrowly elliptic or suboblong, 9-15(-17) × 2.3-4.2 cm, acute and slightly tridenticulate at apex. |
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Scape erect or suberect, terminating in a solitary flower; peduncle purple-violet, 9-19 cm, white pubescent; floral bract narrowly ovate-elliptic, 1.7-2.5 × 0.7-0.9 cm, ciliate, abaxially white pubescent particularly on midvein; pedicel and ovary 4-6 cm, pubescent. Flower 8-10 cm in diam.; dorsal sepal white, with broad maroon veins, greenish toward base; synsepal white with green veins; petals glossy purple-maroon, veined with dark purple, tinged with greenish or yellowish toward base and apex, and spotted with blackish maroon in basal half; lip purple-maroon, greenish on back of pouch; staminode pale yellow-purple, with 2 green-veined blotches on both sides of whitish center. Dorsal sepal broadly ovate, 3-4 × 3-4.2 cm, abaxially puberulent, minutely ciliate, acuminate at apex; synsepal ovate to ovate-lanceolate, 2-3.5 × 0.9-1.6 cm, abaxially puberulent, minutely ciliate, acuminate at apex. Petals suboblong, 3.5-5 × 1-1.4 cm, blackish ciliate, with blackish maroon spots somewhat wartlike, acute or unequally bilobulate at apex; lip helmet-shaped, 3.5-4.5 cm, verrucose on incurved lateral lobes; pouch 2-3 × 2.2-2.8 cm, outside minutely warty. Staminode lunate, 7-8 × 10-11 mm, puberulent adaxially, with inwardly pointed lateral lobes and an acute tooth at apex. Fl. Jun-Dec. |
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