Common Name: BRAKE FAMILY Habit: Perennial herb, 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. Genera In Family: +- 40 genera, 500 species: worldwide, especially dry areas. Note: CA members of Cheilanthes moved to the distantly related Myriopteris; Pellaea breweri to be moved as well, from a to-be-redefined Pellaea; traditional, often untenable limits of genera outside CA also being clarified using molecular phylogenetics. eFlora Treatment Author: Ruth E.B. Kirkpatrick, Alan R. Smith & Thomas Lemieux, except as noted Scientific Editor: Alan R. Smith, Thomas J. Rosatti.
Habit: Plant in soil or rock crevices; rhizome short- to long-creeping[-decumbent], generally many-branched, scales generally lance-linear, pale to dark, mid-stripe dark or not. Leaf: < 75 cm, young leaf tip hooked or coiled; stipe cylindric, red-brown to +- black; blade generally 2--3-pinnate, generally oblong to narrowly triangular; segments generally small, +- flat or abaxially concave (from recurved margins). Sporangia: along margin, in discrete patches to continuous, partly to completely covered by recurved margin (generally not recurved in Myriopteris cooperae). Etymology: (Greek: myriad fern, from much divided leaf blades) Note: Includes all CA members of Cheilanthes as treated in TJM2 (2012). eFlora Treatment Author: Ruth E.B. Kirkpatrick, Alan R. Smith, Thomas Lemieux & Edward Alverson Reference: Grusz & Windham 2013 PhytoKeys 32: 49--64, doi: 10.3897/phytokeys.32.6733
Myriopteris gracilis Fée
NATIVE Habit: Rhizome short-creeping; scales light to red-brown, generally with dark mid-stripe. Leaf: 6--15(18) cm, 1.5--3 cm wide, pale green, scales 0; stipe +- 1 mm wide, hairs < 2 mm, pale or tan with +- orange constrictions; blade generally 3-pinnate; segments small, +- round, abaxially concave, hairs generally not intertwined, long, +- white to +- brown, sparse adaxially, dense abaxially. Sporangia: 32-spored, partly obscured by hairs, less so by segment margin. Chromosomes: n=2n=90. Ecology: Generally limestone crevices, slopes, cliffs; Elevation: 1200--3000 m. Bioregional Distribution: TR, W&I, DMtns; Distribution Outside California: to British Columbia, Montana, central United States, Mexico. Note: Apogamous. Synonyms: Cheilanthes feei T. Moore Jepson eFlora Author: Ruth E.B. Kirkpatrick, Alan R. Smith, Thomas Lemieux & Edward Alverson Reference: Grusz & Windham 2013 PhytoKeys 32: 49--64, doi: 10.3897/phytokeys.32.6733 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Myriopteris covillei Next taxon: Myriopteris gracillima
Botanical illustration including Myriopteris gracilis
Citation for this treatment: Ruth E.B. Kirkpatrick, Alan R. Smith, Thomas Lemieux & Edward Alverson 2014, Myriopteris gracilis, in Jepson Flora Project (eds.) Jepson eFlora, Revision 2, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=99421, accessed on April 25, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2024.
No expert verified images found for Myriopteris gracilis.
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