|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
previous 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.
Perennial, on plants, rocks, in rock crevices, less often in soil, humus, or on dunes; rhizome short- to long-creeping, branched, glaucous to not, scalyRetrieve key for POLYPODIACEAE
Leaves ± alike or of 2 kinds, fertile and sterile; petiole thin to thick, straw-colored or green to brown or black, generally jointed to persistent knob on rhizome; blade generally simple to 1-pinnate, membranous to fleshy or leathery; veins free to fused, generally forked
Sporangia: sori round to elongate, rarely linear, generally 1 per areole, in 1several rows on each side of segment midrib; indusium 0; spores generally ± elliptic, ± smooth to coarse-tubercled or -ridged, scar linear
Genera in family: ± 46 genera, ± 650 species: worldwide, especially Old World tropical. Numbers of genera, species depend on treatment; many species cultivated.