All Floras      Advanced Search
FOC Vol. 2-3 Page 4, 6, 7, 125 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 2-3 | Salviniaceae

1. Salvinia Séguier, Fl. Veron. 3: 52. 1754.

槐叶萍属 huai ye ping shu

Plants floating, small. Stems horizontal, slender, covered with dark brown articulate hairs. Fronds in whorls of 3, sessile or very shortly stipitate; two fronds floating on water surface, green, entire, herbaceous, densely covered with papillae on upper surface, costae slightly distinct; veins obliquely spreading; third frond submersed and finely dissected, densely hairy, and rootlike. Sporocarps clustered at stipe bases of submersed fronds, or in 2 rows along midrib of submersed frond; microsporocarp large, thin-walled, and containing many microsporangia on a branched receptacle, each microsporangium containing 64 microspores; megasporangia vase-shaped, each one only containing 1 megaspore, trilete, perispore absent; microspores ?covered, trilete, mark usually retuse, triangular, perispore absent, exospore thinner, smooth. x = 9.

About ten species: worldwide, mostly in American and African tropics; two species in China.

1 Frond papillae dome-shaped, each ending in a tuft of free multicellular hairs; sporocarps clustered at base of submersed frond.   1 S. natans
+ Frond papillae cylindrical, each ending in a group of (2-)4 multicellular hairs joined at their tips; sporocarps in long straight chains of up to 55.   2 S. molesta

Lower Taxa


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |