@ARTICLE{TreeBASE2Ref17380,
author = {Richard M. K. Saunders and Keith Fowler},
title = {The supraspecific taxonomy and evolution of the fern genus Azolla (Azollaceae).},
year = {1993},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Plant Systematics and Evolution},
volume = {184},
number = {},
pages = {175--193},
abstract = {The systematics of the aquatic fern genus Azolla LAM. is revised at the supraspecific level. Published morphological data are reviewed, and cytological and cladistic analyses of the genus conducted, enabling a discussion of the putative evolutionary trends in the genus, and a revision of the current taxonomy. A phylogenetically more acceptable subgeneric and sectional classification is proposed, viz. subg. Azolla sect. Azolla (comprising A. filiculoides LAM., A. rubra R. BR., A caroliniana auct. non WILLD., A. microphylla auct. non KAULF. and A. mexicana PRESL), subg. Azolla sect. Rhizosperma (MEY.) METT. (comprising A. pinnata R. BR.), and subg. Tetrasporocarpia subg. nov. (comprising A. nilotica DECNE. ex METT.).}
}
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Citation title: "The supraspecific taxonomy and evolution of the fern genus Azolla (Azollaceae).".
