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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Perennial, in soil or on or among rocks; rhizome creeping to erect, scaly.
Leaf: generally all ± alike (or of 2 kinds, fertile, sterile), generally < 50 cm, often < 25 cm; stipe generally thin, wiry, often dark, ×-section with vascular strands generally 1–3, less often many in circle; blade generally pinnate or ± palmate-pinnate (see Adiantum), often >= 2- compound, abaxially often with glands, ± powdery exudate, hairs, or scales; segments round, oblong, fan-shaped, or other, veins generally free.
Sporangia: in sori or not, marginal, submarginal, or along veins, covered by recurved, often modified segment margins (false indusia) or not; true indusia 0; spores spheric, sides flat or not, scar with 3 radiating branches.
± 40 genera, 500 species: worldwide, especially dry areas. [Windham 1993 FNANM 2:122–186] Definition of Cheilanthes, related genera problematic; traditional limits often untenable. —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.
Key to Pteridaceae
Plant in soil or rock crevices; rhizome short-creeping- decumbent, scales lance-elongate, generally dark, with narrow, lighter margin or not.Key to Aspidotis
Leaf: ± alike or fertile, sterile ± dissimilar; axes grooved, light to dark brown; blade 3–4- pinnate, ovate-triangular to 5-sided, glabrous, adaxially ± glossy; pinnae long, narrow, tip pointed, sterile.
Sporangia: in small clusters or continuous along margin; false indusia scarious, irregularly toothed.
4 species: generally w North America, also e Can, ± dry, mtn areas. (Greek: shield-bearer, from shield-like false indusia in Aspidotis californica)
Leaf: 3(4)- pinnate, 10–20(40) cm, thin; pinnae pinnately dissected, segments lanceolate to triangular, teeth few.
Sporangia: false indusia ± as wide as long, free, 1–2(5) per segment, ± entire or with few coarse or deep, irregular teeth.
2n=60,120. Rock outcrops, crevices; 20–1300 m. North Coast Ranges, Cascade Range Foothills, Sierra Nevada, Great Central Valley (Sutter Buttes), Central Western California, Southwestern California;
Previous taxon: Aspidotis
Next taxon: Aspidotis carlotta-halliae
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].
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Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
| Data provided by the participants of the Consortium of California Herbaria.
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