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Article: A morphological taxonomic revision of Azolla Lam. section Rhizosperma (Mey.) Mett. (Azollaceae)

TitleA morphological taxonomic revision of Azolla Lam. section Rhizosperma (Mey.) Mett. (Azollaceae)
Authors
KeywordsA. Nilotica
A. Pinnata
Classification
Morphology
Morphometrics
Pteridophytes
Systematics
Water Ferns
Issue Date1992
Citation
Botanical Journal Of The Linnean Society, 1992, v. 109 n. 3, p. 329-357 How to Cite?
AbstractRecent research on the agronomically important aquatic fern Azolla has been hampered by the lack of a sound taxonomic framework. The classification of section Rhizosperma is revised using multivariate statistical analyses of ultrastructural, gross morphological and anatomical characters. The disparate morphologies and current delimitations of A. pinnata and A. nilotica are corroborated. Three distinct geographically related subspecies of A. pinnata are identified and formally named and described as: 1. subsp. pinnata, occurring in northern and eastern Australia and New Caledonia; 2. subsp. asiatica subsp. nov., occurring in India, southern China, south-east Asia and southern Japan; and 3. subsp. africana stat. et comb. nov., occurring in tropical Africa and Madagascar. A sequential dichotomous key is provided for the identification of taxa, with new taxonomic descriptions. © 1992.
Persistent Identifierhttp://hdl.handle.net/10722/179035
ISSN
2015 Impact Factor: 2.523
2015 SCImago Journal Rankings: 1.138

 

DC FieldValueLanguage
dc.contributor.authorSaunders, RMKen_US
dc.contributor.authorFowler, Ken_US
dc.date.accessioned2012-12-19T09:51:33Z-
dc.date.available2012-12-19T09:51:33Z-
dc.date.issued1992en_US
dc.identifier.citationBotanical Journal Of The Linnean Society, 1992, v. 109 n. 3, p. 329-357en_US
dc.identifier.issn0024-4074en_US
dc.identifier.urihttp://hdl.handle.net/10722/179035-
dc.description.abstractRecent research on the agronomically important aquatic fern Azolla has been hampered by the lack of a sound taxonomic framework. The classification of section Rhizosperma is revised using multivariate statistical analyses of ultrastructural, gross morphological and anatomical characters. The disparate morphologies and current delimitations of A. pinnata and A. nilotica are corroborated. Three distinct geographically related subspecies of A. pinnata are identified and formally named and described as: 1. subsp. pinnata, occurring in northern and eastern Australia and New Caledonia; 2. subsp. asiatica subsp. nov., occurring in India, southern China, south-east Asia and southern Japan; and 3. subsp. africana stat. et comb. nov., occurring in tropical Africa and Madagascar. A sequential dichotomous key is provided for the identification of taxa, with new taxonomic descriptions. © 1992.en_US
dc.languageengen_US
dc.relation.ispartofBotanical Journal of the Linnean Societyen_US
dc.subjectA. Niloticaen_US
dc.subjectA. Pinnataen_US
dc.subjectClassificationen_US
dc.subjectMorphologyen_US
dc.subjectMorphometricsen_US
dc.subjectPteridophytesen_US
dc.subjectSystematicsen_US
dc.subjectWater Fernsen_US
dc.titleA morphological taxonomic revision of Azolla Lam. section Rhizosperma (Mey.) Mett. (Azollaceae)en_US
dc.typeArticleen_US
dc.identifier.emailSaunders, RMK: saunders@hkucc.hku.hken_US
dc.identifier.authoritySaunders, RMK=rp00774en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-38249012718en_US
dc.identifier.volume109en_US
dc.identifier.issue3en_US
dc.identifier.spage329en_US
dc.identifier.epage357en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridSaunders, RMK=35345489600en_US
dc.identifier.scopusauthoridFowler, K=16446679300en_US

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