Abstract:
PREMISE OF THE STUDY:The lycophyte family Selaginellaceae includes approximately 750 herbaceous species worldwide, with the main species richness in the tropics and subtropics. We recently presented a phylogenetic analysis of Selaginellaceae based on DNA sequence data and, with the phylogeny as a framework, the study discussed the character evolution of the group focusing on gross morphology. Here we translate these findings into a new classification. METHODS:To present a robust and useful classification, we identified well-supported monophyletic groups from our previous phylogenetic analysis of 223 species, which together represent the diversity of the family with respect to morphology, taxonomy, and geographical distribution. Care was taken to choose groups with supporting morphology. KEY RESULTS:In this classification, we recognize a single genus Selaginella and seven subgenera: Selaginella, Rupestrae, Lepidophyllae, Gymnogynum, Exaltatae, Ericetorum, and Stachygynandrum. The subgenera are all well supported based on analysis of DNA sequence data and morphology. A key to the subgenera is presented. CONCLUSIONS:Our new classification is based on a well-founded hypothesis of the evolutionary relationships of Selaginella, and each subgenus can be identified by a suite of morphological features, most of them possible to study in the field. Our intention is that the classification will be useful not only to experts in the field, but also to a broader audience.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Weststrand S,Korall Pdoi
10.3732/ajb.1600288subject
Has Abstractpub_date
2016-12-01 00:00:00pages
2160-2169issue
12eissn
0002-9122issn
1537-2197pii
ajb.1600288journal_volume
103pub_type
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journal_title:American journal of botany
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更新日期:2011-02-01 00:00:00
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更新日期:2012-04-01 00:00:00
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doi:
更新日期:2000-05-01 00:00:00
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journal_title:American journal of botany
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doi:10.3732/ajb.0900255
更新日期:2010-05-01 00:00:00
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doi:
更新日期:2001-06-01 00:00:00
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journal_title:American journal of botany
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doi:10.3732/ajb.1100314
更新日期:2012-08-01 00:00:00
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journal_title:American journal of botany
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更新日期:2017-01-01 00:00:00
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journal_title:American journal of botany
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更新日期:2007-10-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2011-10-01 00:00:00