1. Calypso bulbosa (Linnaeus) Oakes var. speciosa (Schlechter) Makino, J. Jap. Bot. 3: 25. 1926.
布袋兰 bu dai lan
Calypso speciosa Schlechter, Repert. Spec. Nov. Regni Veg. Beih. 4: 228. 1919; Cytherea speciosa (Schlechter) Makino.
Tuber ovoid to narrowly oblong, 1-3 × 0.5-0.9 cm, few noded. Leaf dark green, ovate or ovate-elliptic, 3.4-4.5 × 1.8-2.8 cm, base subtruncate, apex acute; petiole-like stalk 2-4.5 cm. Inflorescence 10-14 cm, much taller than leaf, with 2 or 3 tubular sheaths; floral bract lanceolate, 15-18 × 1-2.2 mm, membranous, basal half tubular and embracing pedicel. Flower 25-40 mm in diam.; pedicel and ovary 17-20 mm, slender. Sepals and petals pale pinkish purple, linear-lanceolate, 14-18 × 1.5-3 mm, apex acute or acuminate; lip 12-20 × 8-14 mm; spurlike process extending beyond apex of blade, white with ochre-brown striations and tinged pale yellow toward apex, 14-23 × 6-10 mm; auricles suberect, pale whitish pink, triangular, 3-4 × 5-6 mm; blade pale whitish pink with 3 clusters of white or pale yellow barbate hairs at base, 8-11 × ca. 5 mm. Column 7-10 mm. Fl. Apr-Jun. 2n = 28, 38.
Picea and other coniferous forests; 2900-3200 m. Gansu, Jilin, Nei Mongol, NW Sichuan, Xizang, NW Yunnan [Japan].
Flowers of the Chinese plants possess a longer spurlike process that extends beyond the apex of the lip blade and are generally paler in color than the widespread European and N Asian typical variety of this species. Further critical comparison with authentic material of Calypso bulbosa var. speciosa from Japan would be desirable.