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

4. Conchidium japonicum (Maximowicz) S. C. Chen & J. J. Wood, Fl. China. 25: 348. 2009.

高山蛤兰 gao shan ge lan

Basionym: Eria japonica Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg 31: 103. 1887; Aeridostachya reptans (Kuntze) Rauschert; Callista reptans Kuntze; Dendrobium reptans Franchet & Savatier (1879), not Swartz (1805); E. arisanensis Hayata; E. hosokawae A. D. Hawkes & A. H. Heller; E. matsudae Hayata; E. reptans (Kuntze) Makino; E. reptans var. matsudae (Hayata) S. S. Ying.

Pseudobulbs contiguous, regularly arranged in a row on rhizome, narrowly ovoid, 1-1.5 cm × 3-4 mm, apex 2-leaved. Leaves shortly petiolate, oblong or linear, 4-10 × 0.5-1.6 cm, apex acuminate. Inflorescence subterminal, ca. 5 cm, slender, hairy, 1-4-flowered; peduncle ca. 1 cm; floral bracts ovate, ca. 3 mm, acute. Flowers white; pedicel and ovary ca. 8 mm, hairy. Dorsal sepal narrowly elliptic, ca. 8 × 3 mm, obtuse; lateral sepals ovate, oblique, ca. 6 × 5 mm, acute. Petals elliptic-lanceolate, ca. 8 × 2 mm, obtuse-rounded; lip subobovate in outline, base narrowed into a claw, 3-lobed above middle; lateral lobes erect, deltoid, acute; mid-lobe nearly square, ca. 3 × 3 mm, fleshy, apex subtruncate and slightly emarginate; disk with 3 lamellae from base, central lamella extending to apex and lateral 2 to base of mid-lobe. Column ca. 3 mm, foot nearly 5 mm. Fl. Jun. 2n = 38, 40.

Lithophytic on rocks or epiphytic on tree trunks in forests; 700-900 m (1500-2500 m in Taiwan). S Anhui, N and W Fujian, Guizhou, Taiwan, Zhejiang [S Japan].


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