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Flora of Taiwan | Family List | Orchidaceae | Erythrorchis

Erythrorchis altissima (Blume) Blume, Rumphia. 1: 200. 1837.


  • Cyrtosia altissima Blume
  • Erythrorchis ochobiensis (Hayata) Garay
  • Galeola altissima (Blume) Rchb. f.
  • Galeola ochobiensis Hayata

    Climbing plants to few meters long. Stems terete, glabrous, yellowish to reddish brown, ca. 5 mm thick; internodes 3-6 cm long; scales ovate-lanceolate, 1-2 cm long. Racemes or panicles to 30 cm long, glabrous; rachis often zigzag; floral bracts triangular, 2-3 mm long; pedicel and ovary 8-10 mm long. Flowers many, opening successively, yellowish white; dorsal sepal linear-oblong, 12-17 mm long, 3-4 mm wide, acute or obtuse; lateral sepals obliquely oblanceolate, 11-15 mm long, 4-5 mm wide, obtuse; petals linear-oblanceolate, 13-17 mm long, 2-3 mm wide; lip sessile, curved on lower sides, obovate when expanded, 10-12 mm long, 10 mm wide, obscurely 3-lobed, crisped on apical margin, disc with Y-shaped thickened hairy ridge running from base to center, with horseshoe shaped hairy ridge near apex, with transversely parallel small ridges on each side of median ridges; column ca. 6 mm long; anther 1.5 mm tall; pollinia yellowish, obliquely ovoid, 0.5 mm long. Capsules dark red, filiform-cylindrical, 1525 cm long, 4 mm in diam. Seeds with nearly orbicular wing.

    ILAN: Suao, Suzuki s. n. May 1938. MIAOLI: Wenshui, Kawakami & Mori s. n. Oct 1908. PINGTUNG: Nanjenshan, Sasaki s. n. Oct 1916; Lanjen Cross, Su 7163*.

    India, Thailand, Indochina, Malaysia, the Philippines, the Ryukyus and Indonesia. Taiwan, evergreen hardwoods at low elevations; climbing on tree trunks.


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