Isoetales

[n] - aquatic or marsh-growing fern allies
Found on http://www.webdictionary.co.uk/definition.php?query=Isoetales

Isoetales

(from the article `Lycophyta`) ...the sole living genus is Selaginella, with nearly 800 species, widely distributed around the world; Selaginellites is an extinct genus.Order ...
Found on http://www.britannica.com/eb/a-z/i/44

Isoetales

Isoetales, formerly also written Iso√ętales, is an order of plants in the class Isoetopsida. There are about 140-150 living species, all classified in the genus Isoetes (quillworts), with a cosmopolitan distribution but often scarce to rare. Living species are mostly aquatic or semi-aquatic in clear ponds and slow-moving streams. Each leaf is slen...
Found on http://en.wikipedia.org/wiki/Isoetales
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