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Key to families | Table of families and genera
Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Rhizome short-creeping to suberect, stout. Leaf: stipe stout, fleshy, easily crushed, straw-colored except base generally blackened, base scaly, ×-section with 2 crescent-shaped vascular strands; blade generally >= 2-pinnate, pinnae of equal sides, ± glabrous or minutely hairy, veins free. Sporangia: sori ± round, ± oblong, or J-shaped; indusia 0, oblong, J-shaped, or reniform, laterally attached.
± 100 species: generally northern temperate, especially eastern Asia. (Greek: doorless, from enclosed sori)
1. Sori generally round, ± near margin; indusia 0, marginal tooth often reflexed over sorus ..... A. distentifolium var. americanum
1' Sori oblong or J-shaped, ± not near margin; indusia oblong, J-shaped, or reniform, margin ± reflexed or not, but not over sorus ..... A. filix-femina var. cyclosorum
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.