1463

Petrosavia sakuraii (Makino) J.J.Sm. ex Steenis 

Synonym	:	Miyoshia sakuraii Makino
Family	:	Petrosaviaceae
Flowering and fruiting period	:	July - October
Distribution	:	Eastern and south-eastern Asia
Habitat	:	Mixed forests, bamboo forests; near sea level to 1700 m.
Endemic/Exotic	:	Exotic
Key botanical characters:  Herbs pale yellow, (7-)11- 28 cm tall, glabrous. Rhizome ca. 2 mm thick. Stems slender, 1 or 2 arising from rhizome. Scalelike leaves rather lax, particularly in apical part of stem, usually 1- 2 cm apart, narrowly to broadly ovate, 2- 4(- 5) mm, membranous, 1-veined. Inflorescence a raceme, sometimes ± corymbose, 2- 8.5 cm, to more than 10-flowered; bracts lanceolate to ovate, 2 -3 mm, slightly shorter than pedicel. Pedicel 3 -5 mm, bracteolate in proximal part or near base. Flowers small. Perianth adnate for ca. 1/3 its length to ovary; segments ovate-deltoid, 1-veined, outer ones 0.8(-1) × ca. 1 mm, inner ones (1.5-)2 × ca. 2 mm. Stamens ca. 1 mm; anthers ovate. Ovary broadly ovoid, 3-partite. Capsule ca. 3 × 3 mm. Seeds dark brown, ellipsoid, 0.3 - 0.4(-0.5) mm, longitudinally striate; testa white, elongate, membranous.