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

35. Calanthe griffithii Lindley in Lindley & Paxton, Paxt. Fl. Gard. 3: 37. 1852.

通麦虾脊兰 tong mai xia ji lan

Calanthe anjanii Lucksom; C. tangmaiensis K. Y. Lang & Y. Tateishi.

Plants 30-60 cm tall. Pseudobulbs subconic, small, ca. 2 cm in diam., with 2-4 sheaths. Leaves 3 or 4, well developed and spreading at anthesis, not deciduous; blade oblong or oblong-lanceolate, 29-34 × 5-7 cm, apex acute; base contracted and cuneate, forming a pseudostem to 16 cm. Scape arising from leaf axil, erect, to 75 cm, densely puberulent; rachis ca. 19 cm, laxly many flowered; floral bracts persistent, ovate-lanceolate, 4-5 mm, abaxially sparsely puberulent, apex acuminate. Flowers greenish brown to yellowish green with brownish lip; pedicel and ovary ca. 25 mm, densely puberulent. Sepals similar, oblong, ca. 20 × 10 mm, abaxially puberulent, 5- or 6-veined, apex acute; lateral sepals slightly narrower than dorsal sepal. Petals suboblanceolate, ca. 17 × 6 mm, glabrous, 3-veined, apex acute; lip adnate to base of column wings, shorter than sepals, 3-lobed; lateral lobes oblong, ca. 8 × 4 mm, apex obliquely truncate; mid-lobe brown, subcordate or flabellate-elliptic, ca. 9 × 12 mm, margin undulate, apex emarginate and apiculate in sinus; disk with a single subtriangular lamella centrally; spur straight, cylindric, ca. 6 mm, outside sparsely puberulent, apex obtuse. Column brown, ca. 8 mm, nearly glabrous; rostellum 2-lobed; pollinia obovoid, ca. 1.5 mm. Fl. May.

Evergreen broad-leaved forests; ca. 2000 m. SE Xizang [Bhutan, NE India, Myanmar].


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