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

1. Pomatocalpa spicatum Breda, Gen. Sp. Orchid. Asclep. [fasc. 3: text p. 1, t. 1]. 1829.

鹿角兰 lu jiao lan

Cleisostoma uteriferum J. D. Hooker; C. wendlandorum H. G. Reichenbach; Pomatocalpa wendlandorum (H. G. Reichenbach) J. J. Smith; Saccolabium uteriferum (J. D. Hooker) Ridley; S. wendlandorum (H. G. Reichenbach) Kraenzlin.

Stems erect, 2-3 cm, stout. Leaves 5 or 6; leaf blade dark green, broadly lorate or falcate-oblong, 20-31 × 2.5-3.5 cm, leathery, margin ± undulate, apex unequally bilobed. Inflorescences 2 or 3, lateral, pendulous, 3.5-6 cm, unbranched and racemose or occasionally with 1 or 2 branches; rachis fleshy, ribbed, densely many flowered; floral bracts reflexed, broadly ovate-triangular, ca. 1 mm, acute, often adnate to rachis. Flowers waxy yellow, rather fleshy, dorsal sepal with 2 brown bands at base, lateral sepals with U-shaped brown spots at base and with 2 brown bands above middle, petals with 2 brown bands at base; pedicel and ovary ca. 2.5 mm. Dorsal sepal obovate, ca. 5 × 2 mm, apex rounded; lateral sepals incurved, slightly obliquely obovate, ca. 4.5 × 2.5 mm, obtuse-rounded. Petals obovate-elliptic, ca. 3 × 1.8 mm, obtuse; lip spurred at base, 3-lobed; lateral lobes erect, ovate; mid-lobe reniform-triangular or subrhombic, ca. 1.5 × 1.5 mm, fleshy, apex obtuse; spur subglobose, ca. 2 × 2 mm, inside with a ligulate bilobed-tipped appendage on back wall and a pair of calli near base of disk. Column ca. 2 mm; rostellum ovate-triangular, ca. 0.4 mm; stipe ca. 1.2 mm, narrow; viscidium ca. 0.5 mm, subelliptic, one end broadly emarginate. Fl. Apr. 2n = 38.

Epiphytic on tree trunks in forests. S and W Hainan [Bhutan, India (including Andaman Islands), Indonesia, Laos, Malaysia, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam].


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