Orchidantha siamensis
Content
Description
Leaves up to 60 cm long; petiole c. 30 cm long; lamina lanceolate, up to 30 by 6-7 cm, tapering at base.
Inflorescence few-flowered.
Sepals dark purple, reflexed, linear-lanceolate, apiculate, subequal, 6.5-8 cm long, 8-10 mm wide.
Lateral petals white, narrow, with dentate apex, 15-20 by c. 2.2 mm.
Stamens 10 mm long, filament c. 3 mm, enlarged towards the base.
Ovary 14-20 cm long including the extension; style 10-15 mm long, stigma 15 mm long, with laciniate lobes, c. 6 mm long.
Capsule 2.5-3 cm long with short beak.
Seeds c. 7 mm long.