Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo

Ternstroemia (Pentaphylacaceae) is a pantropical genus of about 100 species, consisting of trees, shrubs and epiphytes. Previous studies merely listed species and sometimes with brief species descriptions of Ternstroemia in separate accounts of the various regions in Borneo. There being no consolida...

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Main Author:	Suzana Sabran
Format:	Thesis
Language:	English
Published:	2019
Subjects:	QL Zoology
Online Access:	https://eprints.ums.edu.my/id/eprint/25168/1/Taxonomic%20revision%20of%20Ternstroemia%20%28Pentaphylacaceae%29%20in%20Borneo.pdf
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spelling	my-ums-ep.251682020-03-11T06:09:34Z Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo 2019 Suzana Sabran QL Zoology Ternstroemia (Pentaphylacaceae) is a pantropical genus of about 100 species, consisting of trees, shrubs and epiphytes. Previous studies merely listed species and sometimes with brief species descriptions of Ternstroemia in separate accounts of the various regions in Borneo. There being no consolidated accounts for Borneo, a taxonomic study of the species of Ternstroemia in Borneo was undertaken. The aims of this study are to identify distinguishing characters, construct a taxonomic key to species, prepare descriptions and update the checklist of Ternstroemia in Borneo. A total of 120 specimens of Ternstroemia species were collected from 19 localities within Sabah and Sarawak from 2013 until 2018. A total of 1312 herbarium specimens of Ternstroemia species from 12 herbaria, i.e. A, BO, BRUN, K, KEP, KNP, L, PNH, SAN, SAR, SING and BORH, were examined. This study is the first comprehensive taxonomic revision of the genus in Borneo based on gross morphology of vegetative and reproductive characters. Detailed descriptions of all the Ternstroemia species including the key to the species and also an updated checklist of Ternstroemia in Borneo was prepared. There is no single morphological character which can be used to delimit any recognised species among the Ternstroemia in Borneo. A combination of vegetative and reproductive morphological characters especially the leaves sizes, textures and shapes and also the flower sizes are useful and more applicable ways to distinguish the 17 species of Ternstroemia in Borneo. From the study, 17 species of Ternstroemia are now recognised in Borneo, including eight species new to science. Sabah and Sarawak has the highest number of species among the geographical areas of Borneo with 17 species, followed by Kalimantan with 13 species and Brunei with 12 species. The number of endemic species of Ternstroemia in Borneo is very high with eleven species (64.7%), namely Ternstroemia beccarii Stapf ex Ridl., T. citnna Rid I., T. hosei Rid I., T. /owii Stapf, r. borneensis S. Suzana & E. Soepadmo, T. pereirae S. Suzana & E. Soepadmo, r. postarii S. Suzana & E. Soepadmo, T. long1folius S. Suzana & E. Soepadmo, T. crass,folium S. Suzana & E. Soepadmo, T. sugaui S. Suzana & E. Soepadmo and r. suleimanae S. Suzana & E. Soepadmo. 2019 Thesis https://eprints.ums.edu.my/id/eprint/25168/ https://eprints.ums.edu.my/id/eprint/25168/1/Taxonomic%20revision%20of%20Ternstroemia%20%28Pentaphylacaceae%29%20in%20Borneo.pdf text en public mphil masters Universiti Malaysia Sabah Institute For Tropical Biology And Conservation
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English
topic	QL Zoology
spellingShingle	QL Zoology Suzana Sabran Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
description	Ternstroemia (Pentaphylacaceae) is a pantropical genus of about 100 species, consisting of trees, shrubs and epiphytes. Previous studies merely listed species and sometimes with brief species descriptions of Ternstroemia in separate accounts of the various regions in Borneo. There being no consolidated accounts for Borneo, a taxonomic study of the species of Ternstroemia in Borneo was undertaken. The aims of this study are to identify distinguishing characters, construct a taxonomic key to species, prepare descriptions and update the checklist of Ternstroemia in Borneo. A total of 120 specimens of Ternstroemia species were collected from 19 localities within Sabah and Sarawak from 2013 until 2018. A total of 1312 herbarium specimens of Ternstroemia species from 12 herbaria, i.e. A, BO, BRUN, K, KEP, KNP, L, PNH, SAN, SAR, SING and BORH, were examined. This study is the first comprehensive taxonomic revision of the genus in Borneo based on gross morphology of vegetative and reproductive characters. Detailed descriptions of all the Ternstroemia species including the key to the species and also an updated checklist of Ternstroemia in Borneo was prepared. There is no single morphological character which can be used to delimit any recognised species among the Ternstroemia in Borneo. A combination of vegetative and reproductive morphological characters especially the leaves sizes, textures and shapes and also the flower sizes are useful and more applicable ways to distinguish the 17 species of Ternstroemia in Borneo. From the study, 17 species of Ternstroemia are now recognised in Borneo, including eight species new to science. Sabah and Sarawak has the highest number of species among the geographical areas of Borneo with 17 species, followed by Kalimantan with 13 species and Brunei with 12 species. The number of endemic species of Ternstroemia in Borneo is very high with eleven species (64.7%), namely Ternstroemia beccarii Stapf ex Ridl., T. citnna Rid I., T. hosei Rid I., T. /owii Stapf, r. borneensis S. Suzana & E. Soepadmo, T. pereirae S. Suzana & E. Soepadmo, r. postarii S. Suzana & E. Soepadmo, T. long1folius S. Suzana & E. Soepadmo, T. crass,folium S. Suzana & E. Soepadmo, T. sugaui S. Suzana & E. Soepadmo and r. suleimanae S. Suzana & E. Soepadmo.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Suzana Sabran
author_facet	Suzana Sabran
author_sort	Suzana Sabran
title	Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
title_short	Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
title_full	Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
title_fullStr	Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
title_full_unstemmed	Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo
title_sort	taxonomic revision of ternstroemia (pentaphylacaceae) in borneo
granting_institution	Universiti Malaysia Sabah
granting_department	Institute For Tropical Biology And Conservation
publishDate	2019
url	https://eprints.ums.edu.my/id/eprint/25168/1/Taxonomic%20revision%20of%20Ternstroemia%20%28Pentaphylacaceae%29%20in%20Borneo.pdf
_version_	1747836546792292352

Taxonomic revision of Ternstroemia (Pentaphylacaceae) in Borneo

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