Cheilanthes feei — Details

Slender Lipfern learn more about names for this taxon

Overview

Distribution

National Distribution

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Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Physical Description

Morphology

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Cheilanthes feei is an apogamous triploid of unknown parentage. It has small, beadlike blade segments similar to those of subg. Physapteris , but most morphological characteristics suggest a clear relationship to members of subg. Cheilanthes (T. Reeves 1979). The species is most often confused with C . parryi , from which it can be distinguished by its thinner, sparser pubescence and smaller ultimate segments.
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Description

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Stems compact to short-creeping, usually 4--8 mm diam.; scales often uniformly brown but at least some on each plant with well-defined, dark, central stripe, linear-lanceolate, slightly contorted, loosely appressed, persistent. Leaves clustered, 4--20 cm; vernation circinate. Petiole dark brown to black, rounded adaxially. Blade linear-oblong to lanceolate, 3-pinnate at base, 1--3 cm wide; rachis rounded adaxially, lacking scales, with dense monomorphic pubescence. Pinnae not articulate, dark color of stalk continuing into pinna base, basal pair usually smaller than adjacent pair, ± equilateral, appearing sparsely pubescent to glabrescent adaxially. Costae brown adaxially for most of length; abaxial scales absent. Ultimate segments round to slightly oblong, beadlike, the largest 1--3 mm, abaxially densely villous with long, segmented hairs, adaxially sparsely hirsute to glabrescent. False indusia marginal, weakly differentiated, 0.05--0.20 mm wide. Sori ± continuous around segment margins. Sporangia containing 32 spores. n = 2 n = 90, apogamous.
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Ecology

Habitat

Habitat & Distribution

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Sporulating late spring--fall. Calcareous cliffs and ledges, usually on limestone or sandstone; 100--3800 m; Alta., B.C.; Ariz., Ark., Calif., Colo., Idaho, Ill., Iowa, Kans., Ky., Minn., Mo., Mont., Nebr., Nev., N.Mex., Okla., Oreg., S.Dak., Tex., Utah, Va., Wash., Wis., Wyo.; n Mexico.
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Conservation

Conservation Status

National NatureServe Conservation Status

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Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

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Rounded Global Status Rank: G5 - Secure

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Wikipedia

Cheilanthes feei

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Cheilanthes feei is a species of lip fern known by the common name Slender lip fern. It is native to much of western North America from British Columbia and Alberta to northern Mexico, and throughout much of the central United States.

It is found in rocky areas, especially in calcareous rock like limestone where it grows in cracks and crevices.

Description

Cheilanthes feei
Cheilanthes feei - gray leaves.

This fern bears gray to pale green leaves up to 18 or 20 centimeters long and 3 wide. Each leaflet on the leaf is divided into lobes which are divided once more into rounded segments. The undersides of the segments are concave and densely hairy. The sori line the edges of the segment undersides and may be buried under the hairs. The fern reproduces asexually by apogamy.

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