Difference between revisions of "Cheilanthes arizonica"
Phytologia 41: 433. 1979.
Common names: Arizona lip fern
Basionym: Cheilanthes pyramidalis subsp. arizonica Maxon
Synonyms: Cheilanthes pyramidalis var. arizonica (Maxon) Broun
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>short-creeping, usually 4–8 mm diam.; scales uniformly dark brown or with poorly defined, dark, central stripe, narrowly lanceolate, straight to slightly contorted, loosely appressed, usually persistent. <b>Leaves</b> clustered, 8–25 cm; vernation circinate. <b>Petiole</b> dark brown, grooved most of length adaxially. <b>Blade</b> elongate-pentagonal, 3-pinnate-pinnatifid to 4-pinnate at base, 4–10 cm wide; rachis grooved adaxially, lacking scales, with minute, widely scattered hairs. <b>Pinnae</b> not articulate, dark color of stalk continuing into pinna base, basal pair conspicuously larger than adjacent pair, inequilateral, proximal basiscopic pinnules enlarged, glabrous adaxially. <b>Costae</b> green adaxially for most of length; abaxial scales absent. <b>Ultimate</b> segments elliptic to linear-oblong, not beadlike, the largest 4–10 mm, abaxially with reddish, scattered, sessile glands, adaxially glabrous; false indusia marginal to obscurely inframarginal, strongly differentiated, 0.25–0.50 mm wide. <b>Sori</b> ± continuous around segment margins. <b>Sporangia</b> containing 32 spores. n = 2n = 90, apogamous.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| + | |phenology=Sporulating summer–fall. | ||
|habitat=Rocky slopes and ledges, on quartzite or igneous substrates | |habitat=Rocky slopes and ledges, on quartzite or igneous substrates | ||
|elevation=1900–2400 m | |elevation=1900–2400 m | ||
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|basionyms=Cheilanthes pyramidalis subsp. arizonica | |basionyms=Cheilanthes pyramidalis subsp. arizonica | ||
|family=Pteridaceae | |family=Pteridaceae | ||
| + | |phenology=Sporulating summer–fall. | ||
|habitat=Rocky slopes and ledges, on quartzite or igneous substrates | |habitat=Rocky slopes and ledges, on quartzite or igneous substrates | ||
|elevation=1900–2400 m | |elevation=1900–2400 m | ||
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|publication year=1979 | |publication year=1979 | ||
|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_670.xml |
|genus=Cheilanthes | |genus=Cheilanthes | ||
|species=Cheilanthes arizonica | |species=Cheilanthes arizonica | ||
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-->[[Category:Treatment]][[Category:Cheilanthes]] | -->[[Category:Treatment]][[Category:Cheilanthes]] | ||
Revision as of 13:25, 27 July 2019
Stems short-creeping, usually 4–8 mm diam.; scales uniformly dark brown or with poorly defined, dark, central stripe, narrowly lanceolate, straight to slightly contorted, loosely appressed, usually persistent. Leaves clustered, 8–25 cm; vernation circinate. Petiole dark brown, grooved most of length adaxially. Blade elongate-pentagonal, 3-pinnate-pinnatifid to 4-pinnate at base, 4–10 cm wide; rachis grooved adaxially, lacking scales, with minute, widely scattered hairs. Pinnae not articulate, dark color of stalk continuing into pinna base, basal pair conspicuously larger than adjacent pair, inequilateral, proximal basiscopic pinnules enlarged, glabrous adaxially. Costae green adaxially for most of length; abaxial scales absent. Ultimate segments elliptic to linear-oblong, not beadlike, the largest 4–10 mm, abaxially with reddish, scattered, sessile glands, adaxially glabrous; false indusia marginal to obscurely inframarginal, strongly differentiated, 0.25–0.50 mm wide. Sori ± continuous around segment margins. Sporangia containing 32 spores. n = 2n = 90, apogamous.
Phenology: Sporulating summer–fall.
Habitat: Rocky slopes and ledges, on quartzite or igneous substrates
Elevation: 1900–2400 m
Distribution
Ariz., Mexico, Central America in Guatemala, Honduras.
Discussion
The distinctive Cheilanthes arizonica is an apogamous triploid of unknown parentage. In the flora, it is known from about seven localities, all of which are situated within 50 km of the Mexican border.
Selected References
None.
Lower Taxa
None.