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

1. Thrixspermum subulatum (Blume) H. G. Reichenbach, Xenia Orchid. 2: 122. 1868.

厚叶白点兰 hou ye bai dian lan

Dendrocolla subulata Blume, Bijdr. 291. 1825; Aerides subulata (Blume) Lindley; Sarcochilus subulatus (Blume) H. G. Reichenbach; Thrixspermum falcilobum Schlechter.

Stems pendulous, compressed, 30-50 cm, branching or unbranched. Leaves many, linear-lanceolate or lorate, 8-15 × 1-2 cm, leathery, thick, often conduplicate and V-shaped especially near base. Inflorescence ca. 1.5 cm, 1-3-flowered; rachis thickened toward apex; floral bracts not distichous, ovate-triangular, very small. Flowers lasting nearly a day, pale yellow, ca. 1.5 cm in diam.; lip white, usually tinged or marked with orange, disk golden yellow; pedicel and ovary green, 1-1.5 cm. Dorsal sepal subelliptic, 8-10 × 4-5 mm, obtuse or acute; lateral sepals slightly oblique, slightly wider. Petals oblong-obovate, ca. 9 × 4 mm, base contracted, apex obtuse; lip 6-7 × 7-9 mm, 3-lobed; lateral lobes erect, falcate, acute and recurved; mid-lobe fleshy, slightly retuse; disk with a long, furcate-tipped, white hairy, central callus. Column ca. 2 mm, foot 3-4 mm. Fl. Apr-May.

Epiphytic on tree trunks along streams; below 700 m. C and S Taiwan [Indonesia, Philippines].


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