Cheilanthes lanosa |
Cheilanthes pringlei |
|
---|---|---|
hairy lip fern |
Pringle's lip fern |
|
Stems | compact to short-creeping, usually 4–8 mm diam.; scales often uniformly brown but at least some on each plant with thin, poorly defined, dark, central stripe, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. |
long-creeping, 1–3 mm diam.; scales uniformly brown or with poorly defined, dark, central stripe, linear-lanceolate, straight to slightly contorted, loosely appressed, usually persistent. |
Leaves | clustered, 7–50 cm; vernation circinate. |
clustered to somewhat scattered, 4–15 cm; vernation noncircinate. |
Petiole | dark brown, rounded adaxially. |
dark brown, grooved distally on adaxial surface. |
Blade | linear-oblong to lanceolate, usually 2-pinnate-pinnatifid at base, 1.5–5 cm wide; rachis rounded adaxially, lacking scales, with monomorphic pubescence. |
ovate-deltate, 3-pinnate-pinnatifid at base, 1.5–5 cm wide; rachis grooved adaxially, with scattered, lanceolate scales, not pubescent. |
Ultimate segments | oblong to lanceolate, not beadlike, the largest 3–5 mm, abaxially and adaxially sparsely hirsute with long, segmented hairs. |
spatulate, not especially beadlike, the largest usually 2–3 mm, abaxially glabrous or with a few small scales near base, adaxially glabrous. |
Pinnae | not articulate, dark color of stalk continuing into pinna base, basal pair slightly smaller than adjacent pair, ± equilateral, appearing sparsely hirsute adaxially. |
not articulate, dark color of stalk continuing into pinna base, basal pair conspicuously larger than adjacent pair, inequilateral, basiscopic pinnules enlarged, appearing glabrous adaxially. |
False indusia | marginal, weakly differentiated, 0.05–0.25 mm wide. |
marginal, weakly differentiated, 0.05–0.25 mm wide. |
Sori | discontinuous, concentrated on small apical and lateral lobes. |
discontinuous, confined to apical or lateral lobes. |
Sporangia | containing 64 spores. |
containing 64 spores. |
Costae | brown adaxially for most of length; abaxial scales absent. |
green adaxially for most of length; abaxial scales multiseriate, lanceolate, truncate or subcordate at base, without overlapping basal lobes, conspicuous, the largest 0.4–0.8 mm wide, loosely imbricate, not concealing ultimate segments, erose, not ciliate. |
2n | = 60. |
= 60. |
Cheilanthes lanosa |
Cheilanthes pringlei |
|
Phenology | Sporulating summer–fall. | Sporulating late spring–fall. |
Habitat | Rocky slopes and ledges, on a variety of substrates including limestone and granite | Rocky slopes and ledges, usually on igneous substrates |
Elevation | 100–800 m (300–2600 ft) | 700–1200 m (2300–3900 ft) |
Distribution |
AL; AR; CT; FL; GA; IL; IN; KS; KY; LA; MD; MN; MO; MS; NC; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WI; WV |
AZ; n Mexico |
Discussion | Cheilanthes lanosa is apparently confined to the forests and prairies of eastern North America, and reports of this distinctive species from Arizona and New Mexico (A. J. Petrik-Ott 1979) have not been substantiated by herbarium specimens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Cheilanthes pringlei is often confused with young, sterile plants of C. fendleri, but it is easily distinguished from the latter by having rachises that are grooved adaxially. This species appears to be restricted to the Sonoran Desert; records from Gila and Cochise counties, Arizona, and southern New Mexico are based on misidentifications. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 2. | FNA vol. 2. |
Parent taxa | Pteridaceae > Cheilanthes | Pteridaceae > Cheilanthes |
Sibling taxa | ||
Synonyms | Nephrodium lanosum, C. vestita | |
Name authority | (Michaux) D. C. Eaton: in Emory, Rep. U.S. Mex. Bound. 2(1): 234. (1859) | Davenport: Bull. Torrey Bot. Club 10: 61. (1883) |
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