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Cheilanthes covillei; Coville's Lip Fern   

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Cheilanthes covillei
Cheilanthes covillei
Coville's Lip Fern
Photographer: Aaron Schusteff

ID: 0000 0000 0109 0068 (2009-01-02)

Copyright © 2009 Aaron Schusteff

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INFORMATION PROVIDED WITH THE PHOTO
  • date of photo  Mar 30, 2004
  • location   Cibbets Flat, Laguna Mountains, Cleveland National Forest (San Diego County, California, US)
  • family Pteridaceae
  • notes   Detail of bottom view of a frond of Cheilanthes, showing scales and inrolled edges of the green pinnule segments (with ball-like sporangia) from below. I believe this is Cheilanthes covillei. However I'm not familiar with Cheilanthes clevelandii, which is sympatric with C. covillei in this area and is hard for me to unequivocally rule out, based on the keys and descriptions I've pored over in FNA, Jepson, Munz, and Wiggins (Flora of Baja California). [NOTE: Cross-reference my comments below with the other three photos I've posted here.] Arguing for C. covillei is the primary character in couplet 10 of the FNA key ( http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=106570#KEY-1-10 ) which, paraphrased, states: scales on lower side of pinnae not *visibly* ciliate (the scales of colvillei are said to be ciliate, but *only at their bases*... which are hidden because the scales are tightly overlapping. In contrast, clevelandii's scales are said to be visibly ciliate beyond their hidden bases). Also arguing for covillei is Wiggin's last key break for Cheilanthes which states: ''Pinnae 5-12 pairs;...covillei'' versus ''Pinnae 12-19 pairs; ... clevelandii''. On the other hand, Jepson and Munz indicate that covillei has fronds 'crowded' (vs. 'well-separated' for clevelandii) and that the scales exceed and obscure view (from below) of the green beed-like pinnule segments (vs. only ''nearly'' exceed and obsure view of the green segments in clevelandii). These characters make clevelandii seem a better fit for the plant in my photos. Nevertheless, weighting all this...my overall impression is that this is more likely C. covillei than C. clevelandii. If you are knowledgeable in distinguishing these two species, I welcome your comments. Please contact me to correct or confirm. Thanks!
  • camera   Shot on a Canon D60 at f8, 1/160, ISO 400 using a Canon 50mm Compact macro lens.
  • photo category: Plant - annual/perennial

  • MORE INFORMATION ABOUT THIS PLANT
  • common names   Coville's Lip Fern (photographer)
  • Look for Jepson Manual treatments, maps (University & Jepson Herbaria)
  • View Calflora record for Cheilanthes covillei
  • View all photos in CalPhotos of Cheilanthes covillei
  • Check Google Images for Cheilanthes covillei


  • The photographer's identification Cheilanthes covillei has not been reviewed. Click here to review or comment on the identification.

     
    Using this photo   The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2009 Aaron Schusteff. For other uses, or if you have questions, contact Aaron Schusteff arbonius2[AT]sbcglobal.net. (Replace the [AT] with the @ symbol before sending an email.)


     

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