Difference between revisions of "Notholaena nealleyi"
Contr. U.S. Natl. Herb. 1: 61. 1890.
Synonyms: Cheilanthes nealleyi (Seaton ex J. M. Coulter) DominChrysochosma schaffneri var. nealleyi (Seaton ex J. M. Coulter) Pichi-SermolliNotholaena schaffneri var. nealleyi (Seaton ex J. M. Coulter) Weatherby
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stem </b>scales mostly bicolored, margins black, broad and poorly defined, thick, ciliate-denticulate. <b>Leaves</b> 5–15 cm. <b>Petiole</b> black to dark brown, much shorter than blade, rounded adaxially, sparsely glandular farinose, bearing needlelike, multicelled hairs and ciliate scales. <b>Blade</b> lanceolate, 2-pinnate-pinnatifid, 3–6 times longer than wide, abaxially with conspicuous whitish farina and shiny, dark brown, needlelike hairs scattered along rachises and costae, adaxially distinctly glandular; basal pinnae equal to or slightly smaller than adjacent pair, ± equilateral, proximal basiscopic pinnules not greatly enlarged. <b>Ultimate</b> segments sessile to subsessile, narrowly adnate to costae; segment margins slightly recurved, rarely concealing sporangia. <b>Sporangia</b> containing 64 spores.</span><!-- |
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| + | |phenology=Sporulating summer–fall. | ||
|habitat=Calcareous cliffs and ledges, usually on limestone | |habitat=Calcareous cliffs and ledges, usually on limestone | ||
|elevation=200–1700 m | |elevation=200–1700 m | ||
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|basionyms= | |basionyms= | ||
|family=Pteridaceae | |family=Pteridaceae | ||
| + | |phenology=Sporulating summer–fall. | ||
|habitat=Calcareous cliffs and ledges, usually on limestone | |habitat=Calcareous cliffs and ledges, usually on limestone | ||
|elevation=200–1700 m | |elevation=200–1700 m | ||
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|publication year=1890 | |publication year=1890 | ||
|special status= | |special status= | ||
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|genus=Notholaena | |genus=Notholaena | ||
|species=Notholaena nealleyi | |species=Notholaena nealleyi | ||
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Revision as of 14:14, 27 July 2019
Stem scales mostly bicolored, margins black, broad and poorly defined, thick, ciliate-denticulate. Leaves 5–15 cm. Petiole black to dark brown, much shorter than blade, rounded adaxially, sparsely glandular farinose, bearing needlelike, multicelled hairs and ciliate scales. Blade lanceolate, 2-pinnate-pinnatifid, 3–6 times longer than wide, abaxially with conspicuous whitish farina and shiny, dark brown, needlelike hairs scattered along rachises and costae, adaxially distinctly glandular; basal pinnae equal to or slightly smaller than adjacent pair, ± equilateral, proximal basiscopic pinnules not greatly enlarged. Ultimate segments sessile to subsessile, narrowly adnate to costae; segment margins slightly recurved, rarely concealing sporangia. Sporangia containing 64 spores.
Phenology: Sporulating summer–fall.
Habitat: Calcareous cliffs and ledges, usually on limestone
Elevation: 200–1700 m
Discussion
Notholaena nealleyi often has been treated as a variety of the Mexican species N. schaffneri (Fournier) L. Underwood ex Davenport, but recent studies (Windham, unpublished data) suggest that it may represent an allotetraploid hybrid between diploid N. schaffneri and another, as yet unidentified, species. Results of these studies, combined with morphologic differences and geographic isolation, favor the recognition of N. nealleyi as a distinct species.
Selected References
None.
Lower Taxa
None.