1. Calanthe actinomorpha Fukuyama, Bot. Mag. (Tokyo). 49: 668. 1935.
辐射虾脊兰 fu she xia ji lan
Phaius actinomorphus (Fukuyama) T. P. Lin.
Plants 40-60 cm tall, without a distinct rhizome. Pseudobulbs very small, enclosed in sheaths. Leaves 3 or 4, basal, well developed at anthesis, not deciduous; blade oblanceolate, 20-55 × 3-8 cm, glabrous, 5-veined, apex acuminate; petiole-like base 10-20 cm, not articulate. Scape arising from leaf axil, erect, 40-50 cm, glabrous, with several scattered tubular sheaths; rachis ca. 10 cm, densely many flowered; floral bracts caducous, whitish, lanceolate, 30-40 mm, membranous, glabrous, apex acuminate. Flowers lemon-yellow, not opening widely; pedicel and ovary ca. 10 mm, glabrous. Sepals similar, oblong-ligulate, 8-9 × 3.5-4 mm, membranous, 3-5-veined, apex acute or mucronate. Petals elliptic, concave, 8-9 × 3.5-4.5 mm, membranous, 3-veined, margin slightly undulate, apex acute; lip similar to petals, ca. 8 × 4.7 mm, glabrous, 3-veined, apex mucronate, base spurless and slightly contracted and adnate to base of column, free from column wings, unlobed, slightly undulate at margin, embracing column on both sides. Column subcylindric, ca. 4 mm, slightly contracted near middle, glabrous; rostellum absent; anther terminal; pollinia clavate, equal in size, ca. 1.5 mm. Fl. Dec. 2n = 38*, 40*.
● Damp places in forests; 800-1000 m. Taiwan.