TREATMENT FROM THE JEPSON MANUAL (1993) |
previous taxon |
next taxon
Jepson Interchange (more information) |
|
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY |
Plant generally aquatic, generally rooted in, often stranded on mud; rhizome creeping, slender, branched
Leaves floating, emergent, or out of water, ± alike; blade 1-palmate or 0, << petiole; veins not or repeatedly forked, free or netted
Sporangia in stalked, spheric or ± flat-ovoid, hard cases of 1 kind, near petiole base
Spores large (female) and small (male), in separate sporangia
Genera in family: 3 genera, ± 70 species: especially temp.
Leaf like that of clover or wood sorrel; blade 1-palmate, leaflets 4, wedge-shaped, hairy
Sporangium case fused to stalk 0.81.7 mm, ± flat-ovoid, hairs long, dense, deciduous or not, teeth 12, near base
Species in genus: > 60 species: especially temp
Etymology: (L.F. Marsigli, Italian botanist, 16561730)
Reference: [Johnson 1986 Syst Bot Monogr 11:187]