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
Publicado:	1999
Materias:	Inflorescence typology Morphology Petrea Petreeae Recordia Verbenaceae Xolocotzia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v37_n3-4_p209_Drewes 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	paper:paper_00116793_v37_n3-4_p209_Drewes
record_format	dspace
spelling	paper:paper_00116793_v37_n3-4_p209_Drewes2023-06-08T14:35:07Z Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae 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. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v37_n3-4_p209_Drewes 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 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.
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
publishDate	1999
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v37_n3-4_p209_Drewes http://hdl.handle.net/20.500.12110/paper_00116793_v37_n3-4_p209_Drewes
_version_	1768542720300679168

Morphology of inflorescences in Verbenaceae-Verbenoideae II: Tribe Petreeae

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