Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China
South China displays Devonian strata with well-exposed outcrops and is regarded as a diversity hotspot of Late Devonian lycopsids. The heterosporous lycopsid <i>Sublepidodendron grabaui</i> has been studied for over ten years, with its general morphology, aerial stem anatomy, microsporan...
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MDPI AG
2022-10-01
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author | Peng Xu Le Liu Deming Wang |
author_facet | Peng Xu Le Liu Deming Wang |
author_sort | Peng Xu |
collection | DOAJ |
description | South China displays Devonian strata with well-exposed outcrops and is regarded as a diversity hotspot of Late Devonian lycopsids. The heterosporous lycopsid <i>Sublepidodendron grabaui</i> has been studied for over ten years, with its general morphology, aerial stem anatomy, microsporangiate strobili, and growth architecture reported. Based on new specimens from Guangde City, Anhui Province, this study provides further knowledge about the megasporangiate strobili and megaspores of <i>S. grabaui</i>. Its slender megasporangiate strobili occur singly or in pairs and occasionally bifurcate in the middle-upper portion. Each megasporophyll consists of a flattened pedicel and an adaxially curved lamina. The lamina forms a downturned heel at the base. Each sessile megasporangium contains at least eight <i>Lagenicula</i>-type megaspores with a small gula. The other observed characteristics of <i>S. grabaui</i> in this study conform to those previously known and are compared to relative coeval taxa. |
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language | English |
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spelling | doaj.art-b4245ff52bf84d5c9f5b36e4ffbca1e62023-11-23T23:01:19ZengMDPI AGBiology2079-77372022-10-011110154410.3390/biology11101544Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South ChinaPeng Xu0Le Liu1Deming Wang2Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaSchool of Geoscience and Surveying Engineering, China University of Mining and Technology Beijing, Beijing 100083, ChinaKey Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaSouth China displays Devonian strata with well-exposed outcrops and is regarded as a diversity hotspot of Late Devonian lycopsids. The heterosporous lycopsid <i>Sublepidodendron grabaui</i> has been studied for over ten years, with its general morphology, aerial stem anatomy, microsporangiate strobili, and growth architecture reported. Based on new specimens from Guangde City, Anhui Province, this study provides further knowledge about the megasporangiate strobili and megaspores of <i>S. grabaui</i>. Its slender megasporangiate strobili occur singly or in pairs and occasionally bifurcate in the middle-upper portion. Each megasporophyll consists of a flattened pedicel and an adaxially curved lamina. The lamina forms a downturned heel at the base. Each sessile megasporangium contains at least eight <i>Lagenicula</i>-type megaspores with a small gula. The other observed characteristics of <i>S. grabaui</i> in this study conform to those previously known and are compared to relative coeval taxa.https://www.mdpi.com/2079-7737/11/10/1544<i>Sublepidodendron grabaui</i>Late Devonianlycopsidmegasporangiate strobili<i>Lagenicula</i> |
spellingShingle | Peng Xu Le Liu Deming Wang Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China Biology <i>Sublepidodendron grabaui</i> Late Devonian lycopsid megasporangiate strobili <i>Lagenicula</i> |
title | Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China |
title_full | Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China |
title_fullStr | Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China |
title_full_unstemmed | Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China |
title_short | Reinvestigation of the Late Devonian Lycopsid <i>Sublepidodendron grabaui</i> from Anhui Province, South China |
title_sort | reinvestigation of the late devonian lycopsid i sublepidodendron grabaui i from anhui province south china |
topic | <i>Sublepidodendron grabaui</i> Late Devonian lycopsid megasporangiate strobili <i>Lagenicula</i> |
url | https://www.mdpi.com/2079-7737/11/10/1544 |
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