Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae

This paper deals with the interpretation, description and typological characterization of the inflorescences of the following genera of the tribe Petreeae Briq.: Petrea L., Xolocotzia Miranda and Recordia Moldenke. All of them have a polytelic type of synflorescence. Florescences of all genera are r...

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Detalles Bibliográficos
Autores principales: Drewes, S.I., Martínez, S.
Formato: JOUR
Materias:
Inflorescence typology
Morphology
Petrea
Petreeae
Recordia
Verbenaceae
Xolocotzia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p209_Drewes
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00116793_v37_n3-4_p209_Drewes
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spelling todo:paper_00116793_v37_n3-4_p209_Drewes2023-10-03T14:10:02Z Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae Drewes, S.I. Martínez, S. Inflorescence typology Morphology Petrea Petreeae Recordia Verbenaceae Xolocotzia This paper deals with the interpretation, description and typological characterization of the inflorescences of the following genera of the tribe Petreeae Briq.: Petrea L., Xolocotzia Miranda and Recordia Moldenke. All of them have a polytelic type of synflorescence. Florescences of all genera are racemes with decussate bracts. The heterothetic diplobotryum is present in Recordia and also in several species of Petrea. Truncation of the main florescence has been found in P. maynensis J. Huber, P. volubilis L. and P. pubescens Turcz. giving rise to an homothetic diplobotryum. Suppression of the enriching zone occurs in Xolocotzia, Recordia and some species of Petrea. Xolocoizia has monobotrya and reduction of flower number within the florescences. In the monobotrya the pair of leaves preceding the basal internode is bracteose and bears axillary resting buds. In the heterothetic diplobotryum this node represents an intercalar inhibition zone. Some Petrea species show aborted accesory paraclades. These arise from the accesory axillary buds of the enrichment zone. According to this study, the heterothetic pleiobotryum has been considered as a primitive or central form, from which monobotrya derived through processes of suppression of the enrichment zone, and homothetic pleiobotrya, by suppression of the main florescence (truncation). The use of inflorescence characters for a cladistic analysis accomplished by Rueda (1994) for the genus Petrea, are discussed. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p209_Drewes
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Inflorescence typology
Morphology
Petrea
Petreeae
Recordia
Verbenaceae
Xolocotzia
spellingShingle Inflorescence typology
Morphology
Petrea
Petreeae
Recordia
Verbenaceae
Xolocotzia
Drewes, S.I.
Martínez, S.
Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
topic_facet Inflorescence typology
Morphology
Petrea
Petreeae
Recordia
Verbenaceae
Xolocotzia
description This paper deals with the interpretation, description and typological characterization of the inflorescences of the following genera of the tribe Petreeae Briq.: Petrea L., Xolocotzia Miranda and Recordia Moldenke. All of them have a polytelic type of synflorescence. Florescences of all genera are racemes with decussate bracts. The heterothetic diplobotryum is present in Recordia and also in several species of Petrea. Truncation of the main florescence has been found in P. maynensis J. Huber, P. volubilis L. and P. pubescens Turcz. giving rise to an homothetic diplobotryum. Suppression of the enriching zone occurs in Xolocotzia, Recordia and some species of Petrea. Xolocoizia has monobotrya and reduction of flower number within the florescences. In the monobotrya the pair of leaves preceding the basal internode is bracteose and bears axillary resting buds. In the heterothetic diplobotryum this node represents an intercalar inhibition zone. Some Petrea species show aborted accesory paraclades. These arise from the accesory axillary buds of the enrichment zone. According to this study, the heterothetic pleiobotryum has been considered as a primitive or central form, from which monobotrya derived through processes of suppression of the enrichment zone, and homothetic pleiobotrya, by suppression of the main florescence (truncation). The use of inflorescence characters for a cladistic analysis accomplished by Rueda (1994) for the genus Petrea, are discussed.
format JOUR
author Drewes, S.I.
Martínez, S.
author_facet Drewes, S.I.
Martínez, S.
author_sort Drewes, S.I.
title Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
title_short Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
title_full Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
title_fullStr Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
title_full_unstemmed Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae
title_sort morphology of inflorescences in verbenaceae-verbenoideae ii: tribe petreeae
url http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p209_Drewes
work_keys_str_mv AT drewessi morphologyofinflorescencesinverbenaceaeverbenoideaeiitribepetreeae
AT martinezs morphologyofinflorescencesinverbenaceaeverbenoideaeiitribepetreeae
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