Sp. Pl.2: 1096. 1753
Phenology: Sporulating spring–summer.
Habitat: Moist calcareous cliffs, banks, and ledges along streams and rivers, walls of lime sinks, canyon walls (in the American southwest), around foundations, on mortar of storm drains
Elevation: 0–2500 m
No evident pattern to morphologic variation in the species is discernible, although a number of segregate species and infraspecific taxa have been recognized within North American Adiantum capillus-veneris. In the Eastern Hemisphere, the species is diploid, with 2n = 60 (I. Manton 1950). Several tetraploid counts have been reported from North America (W. H. Wagner Jr. 1963). Spore-measurement data suggest, however, that the polyploid cytotype may not be widely distributed. Further investigation is needed to determine whether Adiantum capillus-veneris populations in North America are conspecific with those in Eurasia and Africa.
|Author||Cathy A. Paris +|
|Common name||Venus's-hair fern + and southern maidenhair +|
|Elevation||0–2500 m +|
|Habitat||Moist calcareous cliffs, banks, and ledges along streams and rivers, walls of lime sinks, canyon walls (in the American southwest), around foundations, on mortar of storm drains +|
|Illustrator||John Myers +|
|Phenology||Sporulating spring–summer. +|
|Synonym||Adiantum capillus-veneris modestum +, Adiantum capillus-veneris protrusum + and Adiantum capillus-veneris rimicola +|
|Taxon name||Adiantum capillus-veneris +|
|Taxon parent||Adiantum +|
|Taxon rank||species +|
|Volume||Volume 2 +|