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

2. Mycaranthes floribunda (D. Don) S. C. Chen & J. J. Wood, Fl. China. 25: 348. 2009.

拟毛兰 ni mao lan

Basionym: Dendrobium floribundum D. Don, Prodr. Fl. Nepal. 34. 1825; Callista floribunda (D. Don) Kuntze; Eria paniculata Lindley; Pinalia paniculata (Lindley) Kuntze.

Plants 20-60 cm tall. Stems nearly clustered, erect, terete, slightly swollen at base, cylindric, 15-50 cm, 3-5(-8) mm in diam., many noded, with internodes enclosed in leaf sheaths. Leaves many, alternate along stem, sessile, linear or narrowly lanceolate, 10-20 × 0.3-0.6 cm, apex acuminate. Inflorescences 1 or 2, subterminal, 10-15 cm, many flowered, with dense grayish white cottony hairs; floral bracts ovate-lanceolate or subtriangular, 5-6 mm, abaxially (sometimes only at base) with grayish white cottony hairs, acuminate. Flowers yellowish green; pedicel and ovary 2-3 mm, densely grayish white cottony. Sepals densely grayish white cottony abaxially; dorsal sepal ovate-elliptic, ca. 3 × 1 mm, obtuse; lateral sepals ± obliquely triangular, ca. 3 × 2.5 mm, obtuse; mentum ca. 2 mm. Petals oblong, ca. 3 × 1.5 mm, glabrous, broadly obtuse; lip subflabellate in outline, base shortly clawed, distally 3-lobed; lateral lobes subovate-triangular; mid-lobe ± reniform, ca. 1.5 × 2.5 mm; disk with a white, somewhat dumbell-shaped projection from base to near apex and 2 smaller projections on both basal sides; dumbell-shaped projections ca. 1 mm, globose proximally and ellipsoid-cuneate distally. Column less than 1 mm, foot ca. 2 mm. Capsule cylindric, ca. 1 cm × nearly 1.5 mm, with grayish white cottony hairs. Fl. Apr-Jun. 2n = 38 + 0-4B.

Epiphytic on trees in forests; ca. 800 m. S Yunnan [Bhutan, Cambodia, NE India, Laos, Myanmar, Nepal, Thailand, Vietnam].


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