Difference between revisions of "Cheilanthes microphylla"
Syn. Fil. 127. 1806.
Common names: Southern lip fern
Basionym: Adiantum microphyllum Swartz
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>long-creeping, 1–3 mm diam.; scales uniformly brown or slightly darker at base, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. <b>Leaves</b> usually scattered, 8–40 cm; vernation noncircinate. <b>Petiole</b> black, rounded adaxially. <b>Blade</b> lanceolate to linear-oblong, 2-pinnate-pinnatifid to 3-pinnate at base, 1.5–6 cm wide; rachis rounded adaxially, lacking scales, with dimorphic pubescence, abaxially sparsely hirsute, adaxially covered with tortuous, appressed hairs. <b>Pinnae</b> not articulate, dark color of stalk continuing into pinna base, basal pair often slightly larger than adjacent pair, ± equilateral, appearing glabrous or sparsely pubescent adaxially. <b>Costae</b> black adaxially for most of length; abaxial scales absent. <b>Ultimate</b> segments narrowly elliptic to elongate-deltate, not beadlike, the largest 3–7 mm, abaxially and adaxially sparsely hirsute to glabrescent. <b>False</b> indusia marginal to obscurely inframarginal, somewhat differentiated, 0.1–0.4 mm wide. <b>Sori</b> somewhat discontinuous, often concentrated on interrupted lateral lobes. <b>Sporangia</b> containing 64 spores. <b>2n</b> = 116.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| + | |phenology=Sporulating summer–fall. | ||
|habitat=Calcareous rock outcrops and shell mounds | |habitat=Calcareous rock outcrops and shell mounds | ||
|elevation=0–100 m | |elevation=0–100 m | ||
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|basionyms=Adiantum microphyllum | |basionyms=Adiantum microphyllum | ||
|family=Pteridaceae | |family=Pteridaceae | ||
| + | |phenology=Sporulating summer–fall. | ||
|habitat=Calcareous rock outcrops and shell mounds | |habitat=Calcareous rock outcrops and shell mounds | ||
|elevation=0–100 m | |elevation=0–100 m | ||
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|publication year=1806 | |publication year=1806 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_332.xml |
|genus=Cheilanthes | |genus=Cheilanthes | ||
|species=Cheilanthes microphylla | |species=Cheilanthes microphylla | ||
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-->[[Category:Treatment]][[Category:Cheilanthes]] | -->[[Category:Treatment]][[Category:Cheilanthes]] | ||
Revision as of 14:17, 27 July 2019
Stems long-creeping, 1–3 mm diam.; scales uniformly brown or slightly darker at base, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. Leaves usually scattered, 8–40 cm; vernation noncircinate. Petiole black, rounded adaxially. Blade lanceolate to linear-oblong, 2-pinnate-pinnatifid to 3-pinnate at base, 1.5–6 cm wide; rachis rounded adaxially, lacking scales, with dimorphic pubescence, abaxially sparsely hirsute, adaxially covered with tortuous, appressed hairs. Pinnae not articulate, dark color of stalk continuing into pinna base, basal pair often slightly larger than adjacent pair, ± equilateral, appearing glabrous or sparsely pubescent adaxially. Costae black adaxially for most of length; abaxial scales absent. Ultimate segments narrowly elliptic to elongate-deltate, not beadlike, the largest 3–7 mm, abaxially and adaxially sparsely hirsute to glabrescent. False indusia marginal to obscurely inframarginal, somewhat differentiated, 0.1–0.4 mm wide. Sori somewhat discontinuous, often concentrated on interrupted lateral lobes. Sporangia containing 64 spores. 2n = 116.
Phenology: Sporulating summer–fall.
Habitat: Calcareous rock outcrops and shell mounds
Elevation: 0–100 m
Distribution
Fla., Mexico, West Indies, Central America, South America.
Discussion
In the flora, the primarily Caribbean Cheilanthes microphylla is known from a small number of localities on the Florida peninsula. This restricted distribution, combined with its smaller stems, mostly black costae, and 64-spored sporangia, helps to separate Cheilanthes microphylla from the closely related C. alabamensis.
Selected References
None.
Lower Taxa
None.