Sp. Fil.2: 142. 1858
Phenology: Sporulating summer–fall.
Habitat: Cliffs and rocky slopes, on a variety of acidic to mildly basic substrates
Elevation: 300–2900 m
W. H. Wagner Jr. (1965) suggested that Pellaea wrightiana was a fertile allotetraploid hybrid between P. truncata (as P. longimucronata) and P. ternifolia. This hypothesis has been confirmed by isozyme analyses (M. D. Windham 1988). Pellaea wrightiana is therefore treated as a distinct species rather than a variety of P. ternifolia. This tetraploid species hybridizes with P. truncata and P. ternifolia subsp. arizonica to produce sterile triploids and tetraploids with intermediate morphology and malformed spores. Pellaea wrightiana has also hybridized with P. atropurpurea to form a rare apogamous pentaploid known only from western Oklahoma.
|Author||Michael D. Windham +|
|Elevation||300–2900 m +|
|Habitat||Cliffs and rocky slopes, on a variety of acidic to mildly basic substrates +|
|Illustrator||John Myers +|
|Phenology||Sporulating summer–fall. +|
|Synonym||Pellaea ternifolia wrightiana +|
|Taxon name||Pellaea wrightiana +|
|Taxon parent||Pellaea +|
|Taxon rank||species +|
|Volume||Volume 2 +|