A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia

This thesis comprised a systematic study of the genus Vitex Tourn. (Verbenaceae) in Sabah and Sarawak, Borneo. The study was mainly based on 1,064 herbarium specimens obtained from seven herbaria. Additional information on the species was also gathered from some field observations of natural popu...

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Main Author:	Phongoudome, Chanhsamone
Format:	Thesis
Language:	English English
Published:	2000
Subjects:	Vitex - Sabah - Case studies Vitex - Sarawak - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/10013/1/FH_2000_4_IR.pdf
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id	my-upm-ir.10013
record_format	uketd_dc
spelling	my-upm-ir.100132023-12-06T03:03:53Z A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia 2000-05 Phongoudome, Chanhsamone This thesis comprised a systematic study of the genus Vitex Tourn. (Verbenaceae) in Sabah and Sarawak, Borneo. The study was mainly based on 1,064 herbarium specimens obtained from seven herbaria. Additional information on the species was also gathered from some field observations of natural populations, with the incorporation of new characters such as inflorescence architecture and its degree of hairiness, epidermal structures of leaves through the scanning electron microscopy. The genus Vitex comprises 12 species i.e. V. trifolia, V. ovata, V. neg undo, V. cannabifolia, V. pinnata, V. quinata, V. parviflora, V. gamosepa/a, V. vestita, V. secundiflora, V, longipes and V. f1ava; the latter three species are endemic to Borneo. Taxonomic evidences were obtained based on the morphology, anatomy, palynology, ecology and distribution of the taxa, which were finally subjected to numerical methods. The vegetative morphological characters found to be diagnostic where growth form, habit and buttress formation; leaf characteristics such as arrangement, shape, apex, base, margin, number of secondary nerves, petiole and petiolule length, texture, the adaxial and abaxial surface, size length and width; reproductive characters includes inflorescence characteristics such as position, architecture, length and width; flower characteristics such as perianth and colour of petals, and of calyx, fruiting calyx; and, fruit features such as size and seeds. Vitex - Sabah - Case studies Vitex - Sarawak - Case studies 2000-05 Thesis http://psasir.upm.edu.my/id/eprint/10013/ http://psasir.upm.edu.my/id/eprint/10013/1/FH_2000_4_IR.pdf text en public masters Universiti Putra Malaysia Vitex - Sabah - Case studies Vitex - Sarawak - Case studies Faculty of Forestry Ibrahim, Faridah Hanum English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Ibrahim, Faridah Hanum
topic	Vitex - Sabah - Case studies Vitex - Sarawak - Case studies
spellingShingle	Vitex - Sabah - Case studies Vitex - Sarawak - Case studies Phongoudome, Chanhsamone A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
description	This thesis comprised a systematic study of the genus Vitex Tourn. (Verbenaceae) in Sabah and Sarawak, Borneo. The study was mainly based on 1,064 herbarium specimens obtained from seven herbaria. Additional information on the species was also gathered from some field observations of natural populations, with the incorporation of new characters such as inflorescence architecture and its degree of hairiness, epidermal structures of leaves through the scanning electron microscopy. The genus Vitex comprises 12 species i.e. V. trifolia, V. ovata, V. neg undo, V. cannabifolia, V. pinnata, V. quinata, V. parviflora, V. gamosepa/a, V. vestita, V. secundiflora, V, longipes and V. f1ava; the latter three species are endemic to Borneo. Taxonomic evidences were obtained based on the morphology, anatomy, palynology, ecology and distribution of the taxa, which were finally subjected to numerical methods. The vegetative morphological characters found to be diagnostic where growth form, habit and buttress formation; leaf characteristics such as arrangement, shape, apex, base, margin, number of secondary nerves, petiole and petiolule length, texture, the adaxial and abaxial surface, size length and width; reproductive characters includes inflorescence characteristics such as position, architecture, length and width; flower characteristics such as perianth and colour of petals, and of calyx, fruiting calyx; and, fruit features such as size and seeds.
format	Thesis
qualification_level	Master's degree
author	Phongoudome, Chanhsamone
author_facet	Phongoudome, Chanhsamone
author_sort	Phongoudome, Chanhsamone
title	A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
title_short	A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
title_full	A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
title_fullStr	A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
title_full_unstemmed	A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia
title_sort	systematic study on vitex tourn. (verbenaceae) in sabah and sarawak, malaysia
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Forestry
publishDate	2000
url	http://psasir.upm.edu.my/id/eprint/10013/1/FH_2000_4_IR.pdf
_version_	1794018857177841664

A Systematic Study on Vitex Tourn. (Verbenaceae) in Sabah And Sarawak, Malaysia

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