Pellaea glabella Mett. ex Kuhn
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Pteridaceae
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Scientific Name
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Description
Species Description - Similar to P. atropurpurea, but with monomorphic lvs mostly 10–20 cm, the pinnae somewhat decurrent, gradually departing at acute angles to the rachis; basal pinnae with 3–7 segments, less than twice as long as the upper; longest ultimate segments mostly 1–2 cm; petiole and rachis glabrous or slightly hairy; scales of the rhizome discrete, uniformly rust- brown, lustrous, the tips not entangled; margins of the fertile segments usually strongly reflexed, leaving but few sporangia exposed; ours mostly tetraploid (2n=116) and apogamous, the sporangia with 32 spores. Calcareous cliffs or bluffs; Vt. to Va. and Tenn., w. to Minn., Kans., and Tex., and in the western cordillera. Our pls are var. glabella. (P. atropurpurea var. bushii)
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Common Names
smooth cliff-brake