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Violaceae

堇菜科

特徵描述
屬列表
Hybanthus 鼠鞭草屬
Viola 堇菜屬
標本列表

Viola 堇菜屬

作者

WANG, JENN-CHE and HUANG, TSENG-CHIENG

型態特徵

Perennial herb. Leaves alternate, petiolate; blade suborbicular to linear-lanceolate, the margin serrate to crenate; stipules free or adnate to petiole, persistent, usually fimbriate or serrate, sometimes nearly entire. Flowers axillary, bisexual, zygomorphic, solitary, with a pair of bracteoles in the half of the peduncles; sepals 5, nearly equal, entire to denticulate, with appendages at base, persistent; petals 5, unequal, the lower one spurred at base, the lateral pair often bearded inside; stamens 5, connivent around the gynoecium; anther 2-celled, subsessile, connective produced into an apical appendage, the lower two bearing appendages projecting into the spur; ovary 1-celled, glabrous or pubescent, ovules numerous, on 3-parietal placentas; style straight or geniculate at base, filiform to conspicously clavate, often lobed or more or less dilated at apex, with a openning of stigmatic cavity terminal or anterior and subterminal. Fruit a 3-valved capsule, globose to ellipsoidal; valves boat-shaped, usually with thick rigid keels. Seeds numerous, ovoid or ellipsoidal with crustaceous testa.

More than 400 species, chiefly in temperate regions throughout the world. 18 taxa and one doubtful species in Taiwan.

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