Spirodela

Primary tabs

Spirodela

Description

Small water plants, floating at the surface. Inflorescence 1, lateral, developing from one of the budding pouches, consisting of 1 ♀ and 2 ♂ flowers, enclosed by a membranous spathe. Fruit asymmetric, slightly or distinctly winged. Seed smooth or longitudinally ribbed.

Distribution

Arctic regions absent, worldwide present
Worldwide, the Arctic regions excepted, consisting of 4 spp.

Citation

SCHLEID. 1895 – In: Bot. Jahrb.: 283
HARTOG & PLAS 1970 – In: Blumea: 358
HEGELM. 1868: Lemnac.: 147
ROUY 1912 – In: Fl. Fr.: 285
DAUBS 1965: Monogr. Lemnac.: 8
HARTOG 1970: pp. 647-648. – In: Taxon