Log In New Account Sitemap
  • Home
  • Specimen Search
    • Search Collections
    • Map Search
    • Exsiccati Search
  • Images
    • Image Browser
    • Search Images
  • Flora Projects
    • Arizona
    • New Mexico
    • Colorado Plateau
    • Plant Atlas of Arizona (PAPAZ)
    • Sonoran Desert
    • Teaching Checklists
  • Agency Floras
    • NPS - Intermountain
    • USFWS - Region 2
    • BLM Flora
    • Coronado NF
    • Tonto NF
  • Dynamic Floras
    • Dynamic Checklist
    • Dynamic Key
  • Additional Websites
    • New Mexico Flores
    • Plant Atlas Project of Arizona (PAPAZ)
    • Southwest Colorado Wildflowers
    • Vascular Plants of the Gila Wilderness
    • Consortium of Midwest Herbaria
    • Consortium of Southern Rocky Mountain Herbaria
    • Intermountain Region Herbaria Network (IRHN)
    • Mid-Atlantic Herbaria
    • North American Network of Small Herbaria (NANSH)
    • Northern Great Plains Herbaria
    • Red de Herbarios del Noroeste de México (northern Mexico)
    • SERNEC - Southeastern USA
    • Texas Oklahoma Regional Consortium of Herbaria (TORCH)
  • Resources
    • Symbiota Docs
    • Video Tutorials
    • Collections in SEINet
    • Joining a Portal
Myriopteris gracillima (D. C. Eaton) J. Sm.  
Family: Pteridaceae
Lace Lip Fern
[Cheilanthes gracillima D.C. Eaton, moreCheilanthes gracillima var. aberrans M.E. Jones]
Myriopteris gracillima image
Patrick Alexander
  • FNA
  • Resources
Michael D. Windham
Eric W. Rabe in Flora of North America (vol. 2)
Stems short-creeping, 4--8 mm diam.; scales uniformly brown or with poorly defined, dark, central stripe, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. Leaves clustered, 5--25 cm; vernation noncircinate. Petiole dark brown, rounded adaxially. Blade linear-oblong, 2--3-pinnate at base, 1--2.5 cm wide; rachis rounded adaxially, with scattered linear scales, not pubescent. Pinnae not articulate, dark color of stalk continuing into pinna base, basal pair not conspicuously larger than adjacent pair, usually equilateral, appearing sparsely pubescent or glabrous adaxially. Costae green adaxially for most of length; abaxial scales multiseriate, linear, truncate at base, inconspicuous, the largest 0.1--0.4 mm wide, loosely imbricate, not concealing ultimate segments, long-ciliate, cilia usually confined to base. Ultimate segments oblong or rarely oval, beadlike, the largest 1.5--3 mm, abaxially densely covered with branched hairs and small, ciliate scales, adaxially with scattered, branched hairs or glabrescent. False indusia marginal, slightly differentiated, 0.05--0.25 mm wide. Sori ± continuous around segment margins. Sporangia containing 64 spores. Sporulating summer--fall. Cliffs and rocky slopes, usually on igneous substrates; 800--3000 m; Alta., B.C.; Calif., Idaho, Mont., Nev., Oreg., Utah, Wash. Cheilanthes gracillima is a well-marked species, but it apparently hybridizes with C . intertexta (see reticulogram) to produce plants of intermediate morphology with malformed spores that have been called C . gracillima var. aberrans M. E. Jones (A. R. Smith 1974).

Myriopteris gracillima
Open Interactive Map
Myriopteris gracillima image
Patrick Alexander
Myriopteris gracillima image
Patrick Alexander
Myriopteris gracillima image
Patrick Alexander
Myriopteris gracillima image
Patrick Alexander
Myriopteris gracillima image
Patrick Alexander
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Myriopteris gracillima image
Click to Display
100 Initial Images
- - - - -
View All Images
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
Powered by Symbiota