Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower

This paper provides the first comparative survey of structural variation in inflorescence architecture and flower structure of Hemigraphis and other members of the subtribe Strobilanthinae (Acanthaceae). Several discrete structural characters are identified which may provide support for phylogenetic...

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Main Authors: Moylan, E, Rudall, P, Scotland, R
Format: Journal article
Language:English
Published: 2004
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author Moylan, E
Rudall, P
Scotland, R
author_facet Moylan, E
Rudall, P
Scotland, R
author_sort Moylan, E
collection OXFORD
description This paper provides the first comparative survey of structural variation in inflorescence architecture and flower structure of Hemigraphis and other members of the subtribe Strobilanthinae (Acanthaceae). Several discrete structural characters are identified which may provide support for phylogenetic relationships within the group. These include (1) the presence or absence of an accessory bud, (2) the presence or absence of a hollow style, (3) the presence or absence of an abscission layer, (4) the number of stamens comprising the androecium, and (5) the pattern of filament detachment. The structure of the filament curtain, a complex structure that partitions the flower, is also investigated. A more precise term for this structure "stapetal curtain" is suggested since it is a result of close synorganisation between the filaments and corolla tube. This structure appears to have a wide distribution throughout Acanthaceae and is not confined to Ruellieae s.l., as previously described. The earlier characterisation of four discrete types of filament curtain is unsatisfactory, since many of the features used to distinguish them are continuous and not unique features of particular species. © Springer-Verlag 2004.
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spelling oxford-uuid:41f315d7-2684-4ac7-9184-d7927be4cd692022-03-26T14:46:37ZComparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flowerJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:41f315d7-2684-4ac7-9184-d7927be4cd69EnglishSymplectic Elements at Oxford2004Moylan, ERudall, PScotland, RThis paper provides the first comparative survey of structural variation in inflorescence architecture and flower structure of Hemigraphis and other members of the subtribe Strobilanthinae (Acanthaceae). Several discrete structural characters are identified which may provide support for phylogenetic relationships within the group. These include (1) the presence or absence of an accessory bud, (2) the presence or absence of a hollow style, (3) the presence or absence of an abscission layer, (4) the number of stamens comprising the androecium, and (5) the pattern of filament detachment. The structure of the filament curtain, a complex structure that partitions the flower, is also investigated. A more precise term for this structure "stapetal curtain" is suggested since it is a result of close synorganisation between the filaments and corolla tube. This structure appears to have a wide distribution throughout Acanthaceae and is not confined to Ruellieae s.l., as previously described. The earlier characterisation of four discrete types of filament curtain is unsatisfactory, since many of the features used to distinguish them are continuous and not unique features of particular species. © Springer-Verlag 2004.
spellingShingle Moylan, E
Rudall, P
Scotland, R
Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title_full Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title_fullStr Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title_full_unstemmed Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title_short Comparative floral anatomy of Strobilanthinae (Acanthaceae), with particular reference to internal partitioning of the flower
title_sort comparative floral anatomy of strobilanthinae acanthaceae with particular reference to internal partitioning of the flower
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AT rudallp comparativefloralanatomyofstrobilanthinaeacanthaceaewithparticularreferencetointernalpartitioningoftheflower
AT scotlandr comparativefloralanatomyofstrobilanthinaeacanthaceaewithparticularreferencetointernalpartitioningoftheflower