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FOC | Family List | FOC Vol. 25 | Orchidaceae | Paphiopedilum

20. Paphiopedilum gratrixianum Rolfe, Orchid Rev. 13: 63. 1905.

格力兜兰 ge li dou lan

Cypripedium gratrixianum Masters, Gard. Chron., ser. 3, 37: 76. 1905, not B. S. Williams (1897); Cordula gratrixiana (Rolfe) Rolfe; Paphiopedilum affine De Wildeman; P. villosum (Lindley) Stein f. affine (De Wildeman) O. Gruss & Roellke; P. villosum var. affine (De Wildeman) Braem; P. villosum var. gratrixianum (Rolfe) Braem.

Plants terrestrial or lithophytic. Leaves 4-8, distichous; blade abaxially green and toward base spotted with purple, adaxially deep green, oblanceolate-oblong to narrowly oblong, 28-40 × 2.6-3.4 cm, unequally bilobulate or tridenticulate at apex. Scape suberect, terminating in a solitary flower; peduncle green, 13-28 cm, purple pubescent; floral bract green, subelliptic-ovate, 3.5-4.7 × 2-2.5 cm; pedicel and ovary 5-6.5 cm, purple pubescent. Flower 7-8 cm in diam.; dorsal sepal white, often pale green or brown-green toward its base, spotted with deep purple in basal 2/3; synsepal white, often with 2 rows of purple spots centrally; petals yellow-brown, with deeper color on upper side of midvein than on lower side; lip pale yellow-brown; staminode pale yellow, slightly flushed with brown. Dorsal sepal broadly elliptic or suborbicular, 5-5.5 × 3.8-4.6 cm, ± puberulent abaxially, ciliate, basal margin recurved, apex acute; synsepal elliptic or ovate-elliptic, 4.2-5 × 2.2-2.7 cm. Petals spatulate, 5.2-5.5 × 2-2.5 cm, margin often undulate and recurved, apex retuse to 3-dentate; lip helmet-shaped; pouch ovoid, 2.8-3.1 × 2.4-2.7 cm. Staminode obcordate, 10-11 × 10-11 mm, adaxially with bubblelike papillae and a central umbo, purple hairy toward its base. Fl. Sep-Dec. 2n = 26.

Rocky places in forests; 1800-1900 m. SE Yunnan (Malipo) [Laos, N Vietnam].

Paphiopedilum ×vietenryanum O. Gruss & Petchleung (Orchidee (Hamburg) 53: 221. 2002), a natural hybrid between this species and P. henryanum, was described recently from SE Yunnan.


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