About
Contact
Links
Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
Identification tools
 

Electronic Flora of South Australia genus Fact Sheet

Family: Araceae
Spirodela

Citation: Schleid., Linnaea 13:391 (1839).

Derivation: Greek speira, a coil; delos, conspicuous; on account of the spiral vessels in the structure of the plant.

Synonymy: Not Applicable

Common name: None

Description:
Each thallus has a dorsal and a ventral scale; the dorsal scale is small, almost round, membranous, situated at the base of the dorsal side of a very young thallus when still within the parent pocket; the ventral scale is a membrane present on the thallus undersurface at the position from which the roots arise; roots few to several.

Inflorescence produced in one of the 2 lateral pockets, consisting of 1 female and 2 male flowers together in a membranous spathe; male flower composed of 1 stamen with a terminal 2-celled anther; female flower composed of a flask-shaped ovary with 1-several ovules and a solitary terminal style and a concave stigma.

Distribution:  6 species in all continents except Africa.

Biology: No text

Author: Not yet available


Disclaimer Copyright Disclaimer Copyright Email Contact:
State Herbarium of South Australia
Government of South Australia Government of South Australia Government of South Australia Department for Environment and Water