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Ferns and relatives / Helechos y afines
Astrolepis
EOL Text
Astrolepis is a small genus of ferns in the family Pteridaceae. It was formed in 1992 from species previously placed in Cheilanthes and Notholaena. The name is derived from the Greek words ἄστρον (astron), meaning "star," and λεπίς (lepis), meaning "scale," referring to the star-like scales on adaxial blade surfaces. Members of the genus are commonly known as star-scaled cloak ferns and are native to the Americas.[2]
Selected species[edit]
- Astrolepis cochisensis (Goodding) D.M.Benham & Windham – Cochise scaly cloakfern
- Astrolepis integerrima (Hook.) D.M.Benham & Windham – hybrid cloakfern
- Astrolepis sinuata (Lag. ex Sw.) D.M.Benham & Windham – wavy scaly cloakfern
- Astrolepis windhamii D.M.Benham – Windham's scaly cloakfern[3]
References[edit]
- ^ "Genus: Astrolepis D. M. Benham & Windham". Germplasm Resources Information Network. United States Department of Agriculture. 2005-10-13. Retrieved 2011-11-06.
- ^ Benham, Dale M.; Michael D. Windham. "Astrolepis D. M. Benham & Windham, Amer. Fern J. 82: 55. 1992.". Flora of North America. eFloras.org. Retrieved 2011-11-06.
- ^ "Astrolepis". Integrated Taxonomic Information System. Retrieved 2011-11-06.
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Source | http://en.wikipedia.org/w/index.php?title=Astrolepis&oldid=591083831 |
Ariz., Nev., N.Mex., Okla., Tex.; n,c Mexico.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500211 |
Stems compact; stem scales uniformly tan or somewhat darker near base, to 15 mm, margins ciliate-dentate to entire. Leaves 8--45 cm. Blade 1-pinnate to pinnate-pinnatifid, pinna pairs 20--45. Pinnae oblong to ovate, largest usually 7--15 mm, entire or asymmetrically lobed, lobes 2--7, broadly rounded, separated by shallow sinuses; abaxial scales concealing surface, lanceolate, usually 1--1.5 mm, ciliate with coarse marginal projections; adaxial scales abundant, mostly persistent, stellate to coarsely ciliate, elongate, attached at base, body mostly 5--7 cells wide. Sporangia containing 32 spores. n = 2 n = 87, apogamous.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500211 |
Notholaena sinuata (Lagasca ex Swartz) Kaulfuss var. integerrima Hooker, Sp. Fil. 5: 108. 1864; Cheilanthes integerrima (Hooker) Mickel; Notholaena integerrima (Hooker) Hevly
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500211 |
Sporulating summer--fall. Rocky hillsides and cliffs; usually on limestone or other calcareous substrates; 500--1800m.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500211 |
R. H. Hevly (1965) hypothesized that Astrolepis integerrima was produced by hybridization between A . cochisensis and A . sinuata . Recent isozyme analyses (D. M. Benham 1989) indicate, however, that Astrolepis integerrima is an apogamous allotriploid hybrid between A . cochisensis and an unnamed Mexican taxon related to A . crassifolia (Houlston & T. Moore) D. M. Benham & Windham. Two morphologic forms exist in this taxon: one with essentially entire pinnae, and one (more common in the United States) with larger, asymmetrically lobed pinnae. The former might be confused with A . cochisensis on occasion, but the abundance of adaxial scales and the larger pinnae of A . integerrima should serve to distinguish these species. The lobed form of A . integerrima is superficially similar to A . windhamii , from which it is distinguished by the abundance and greater width of adaxial scales and the asymmetrical lobing of the pinnae.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500211 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:3
Specimens with Sequences:3
Specimens with Barcodes:3
Species:3
Species With Barcodes:3
Public Records:3
Public Species:3
Public BINs:0