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Assessing phylogenetic relationships in extant heterosporous ferns , with a focus on Pilularia and Salvinia

Nagalingum,N.S.; Nowak,M.D.; Pryer,K.M.

Botanical Journal of The Linnean Society 7(4): 673-685

2008


ISSN/ISBN: 0024-4074
DOI: 10.1111/j.1095-8339.2008.00806.x
Accession: 030190773

Heterosporous ferns (Salviniales) are a group of approximately 70 species that produce two types of spores (megaspores and microspores). Earlier broad-scale phylogenetic studies on the order typically focused on one or, at most, two species per genus. In contrast, our study samples numerous species for each genus, wherever possible, accounting for almost half of the species diversity of the order. Our analyses resolve Marsileaceae, Salviniaceae and all of the component genera as monophyletic.

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