Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Alan R. Smith and Thomas Lemieux

Perennial, in soil or on or among rocks; rhizome creeping to erect, scaly
Leaves generally all ± alike (or of 2 kinds, fertile and sterile), generally < 50 cm, often < 25 cm; petiole generally thin, wiry, often dark, in transverse section with vascular strands generally 1–3, less often many in a circle; blade generally pinnate or ± palmate-pinnate (see Adiantum ), often 2 or more compound, lower surface often with glands, ± powdery exudate, hairs, or scales; segments round, oblong, fan-shaped, or otherwise, veins generally free
Sporangia in sori or not, marginal, submarginal, or along veins, sometimes covered by recurved, often modified segment margins (false indusia); true indusia 0; spores spheric, sides sometimes flat, scar with 3 radiating branches
Genera in family: ± 40 genera, 500 species: worldwide, especially dry areas. Definition of Cheilanthes and related genera problematic; traditional limits often untenable.



Alan R. Smith, Thomas Lemieux, and Edward Alverson

Plant in rocky places; rhizome creeping-decumbent, scales brown
Leaves tufted, deciduous or evergreen, of 2 kinds (fertile more erect, with longer petioles, longer, narrower segments than sterile); petioles dark, scaly at base, tan to greenish, glabrous above base; blades 2–4-pinnate, triangular, lanceolate, or elliptic; veins free
Sporangia along veins, submarginal, appearing to cover surface at maturity; false indusia linear, extending from segment base to tip. Possibly
Species in genus: 11 species: temp North America, South America, Eur, Asia
Etymology: (Greek: hidden line, from protected sori)
Reference: [Alverson 1989 Amer Fern J 79:95–102]
Horticultural information: DFCLT.


C. acrostichoides R. Br.


Rhizome forming small clumps
Leaves: fertile 10–30 cm; sterile 6–22 cm, blade ovate-lanceolate, ± dark green when mature
Chromosomes: 2n=60
Ecology: Moist to ± dry rocky slopes, crevices
Elevation: 1400–3300 m.
Bioregional distribution: Klamath Ranges, High North Coast Ranges, High Cascade Range, High Sierra Nevada, San Bernardino Mountains, San Jacinto Mountains
Distribution outside California: w US, w&c Canada s to n MI, n MN

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bioregional map for CRYPTOGRAMMA%20acrostichoides being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Cryptogramma acrostichoides
Retrieve dichotomous key for Cryptogramma
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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