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

76. Dendrobium terminale E. C. Parish & H. G. Reichenbach, Trans. Linn. Soc. London. 30: 149. 1874.

刀叶石斛 dao ye shi hu

Aporum terminale (E. C. Parish & H. G. Reichenbach) M. A. Clements; A. verlaquii (Costantin) Rauschert; Callista terminalis (E. C. Parish & H. G. Reichenbach) Kuntze; Dendrobium verlaquii Costantin.

Stems erect, sometimes upper part branched, compressed trilateral, 10-23 cm, with leaf sheaths ca. 5 mm in diam., base contracted, with many nodes, internodes ca. 1 cm. Leaves distichous, sparsely overlapping, ascending, laterally compressed and dagger-shaped, 3-4 × 0.6-1(or more) cm, thickly leathery or fleshy, apex acute. Inflorescence subterminal; peduncle very short; basal sheaths several, membranous; floral bracts small. Pedicel and ovary ca. 7 mm, slender. Flowers small, pale yellowish white. Dorsal sepal ovate-oblong, 3-4 × ca. 1.4 mm, 3-veined, subacute; lateral sepals obliquely ovate-triangular, ca. 4 mm, 3- or 4-veined, base very oblique, margin close to column, apex acute; mentum narrowly long, ca. 7 mm. Petals oblong, ca. 10 × 15 mm, 1-veined, apex subobtuse; lip adnate to apex of column foot, subspatulate, ca. 10 × 7 mm, adaxially with thickened callus or crestlike protrusion near apex, front margin undulate, apex 2-lobed. Column ca. 1 mm; anther cap truncate and denticulate at apical margin.

Epiphytic on tree trunks at forest margins, lithophytic on rocks in mountain valleys; 800-1100 m. S Yunnan (Mengla) [NE India, Malaysia, Myanmar, Thailand, Vietnam].


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