Acrostichum

Acrostichum is a fern genus in the Ceratopteridoideae subfamily of the Pteridaceae. It was one of the original pteridophyte genera delineated by Linnaeus. It was originally drawn very broadly, including all ferns that had sori apparently `acrostichoid`, or distributed in a solid mass across the back of the frond, rather than organized in discret..
Found on http://en.wikipedia.org/wiki/Acrostichum

Acrostichum

[n] - in some classification systems placed in family Polypodiaceae
Found on http://www.webdictionary.co.uk/definition.php?query=Acrostichum

Acrostichum

genus Acrostichum noun in some classification systems placed in family Polypodiaceae
Found on http://wordnetweb.princeton.edu/perl/webwn?s=Acrostichum

Acrostichum

(from the article `fern`) ...sori (i.e., without an indusium) are found in Polypodium. (4) An arrangement of large sori that usually expand over the entire undersurface of the ...
Found on http://www.britannica.com/eb/a-z/a/13
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