A morphological analysis of Syzygium, with a focus on fibre bundles and description of a new subgenus

Sebastian Hatt; Yee Wen Low; David F.R.P. Burslem; David J. Middleton; E. D. Biffin; Olivier Maurin; Eve J. Lucas

doi:10.1093/botlinnean/boac065

A morphological analysis of Syzygium, with a focus on fibre bundles and description of a new subgenus

Sebastian Hatt^* (Corresponding Author), Yee Wen Low, David F.R.P. Burslem, David J. Middleton, E. D. Biffin, Olivier Maurin, Eve J. Lucas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Syzygium is a large genus (1200-1500 species) of Old World tropical trees, currently divided into five subgenera containing widely different numbers of species. Syzygium subgenus Perikion was defined by the presence of fibre bundles in the hypanthium wall, although until now this feature has not been investigated or images published. Furthermore, discovery of fibre bundles in certain species outside Syzygium subgenus Perikion calls for reassessment of the subgenus. In this paper, a morphological analysis is presented for all species previously associated with Syzygium subgenus Perikion or known to have fibre bundles. Results indicate the need for description of a new subgenus, Syzygium subgenus Oborapi, characterized by a distinctly goblet-shaped calyx, presence of fibre bundles in the hypanthium/mesocarp, prominent black lenticels on the abaxial leaf surface, ascending ovule orientation and species diversity centred on the Sunda Shelf. Fibre bundles are photographed and documented for the first time from a range of species and at different magnifications. A preliminary list of species is presented for Syzygium subgenus Perikion and Syzygium subgenus Oborapi, with recommendations for further investigation.

Original language	English
Pages (from-to)	93-109
Number of pages	17
Journal	Botanical Journal of the Linnean Society
Volume	202
Issue number	1
Early online date	1 Feb 2023
DOIs	https://doi.org/10.1093/botlinnean/boac065
Publication status	Published - May 2023

Bibliographical note

YWL was supported by a postgraduate scholarship research grant from the Ministry of National Development, Singapore awarded through the National Parks Board, Singapore (NParks; NParks’ Garden City Fund). YWL also benefited from additional research funding of the School of Biological Sciences (SBS), Nanyang Technological University (NTU) awarded to Victor A. Albert and Charlotte Lindqvist. Yap Jing Xuan, Bazilah Ibrahim and Serena Lee assisted with herbarium materials at SING. We thank Ian Turner for continued support on questions of general and Syzygium-specific nomenclature. We gratefully acknowledge the thoughtful reviews of an anonymous reviewer and Dr Wuu Kuang Soh, both of which significantly enhanced the report presented here.

Data Availability Statement

The data underlying this article are available in the article.

Keywords

Myrtaceae
Oborapi
Perikion
plant morphology
plant taxonomy

Access to Document

10.1093/botlinnean/boac065Licence: Unspecified

Cite this

@article{219a2830fea641dbbeae8d58aa7dd14d,

title = "A morphological analysis of Syzygium, with a focus on fibre bundles and description of a new subgenus",

abstract = "Syzygium is a large genus (1200-1500 species) of Old World tropical trees, currently divided into five subgenera containing widely different numbers of species. Syzygium subgenus Perikion was defined by the presence of fibre bundles in the hypanthium wall, although until now this feature has not been investigated or images published. Furthermore, discovery of fibre bundles in certain species outside Syzygium subgenus Perikion calls for reassessment of the subgenus. In this paper, a morphological analysis is presented for all species previously associated with Syzygium subgenus Perikion or known to have fibre bundles. Results indicate the need for description of a new subgenus, Syzygium subgenus Oborapi, characterized by a distinctly goblet-shaped calyx, presence of fibre bundles in the hypanthium/mesocarp, prominent black lenticels on the abaxial leaf surface, ascending ovule orientation and species diversity centred on the Sunda Shelf. Fibre bundles are photographed and documented for the first time from a range of species and at different magnifications. A preliminary list of species is presented for Syzygium subgenus Perikion and Syzygium subgenus Oborapi, with recommendations for further investigation.",

keywords = "Myrtaceae, Oborapi, Perikion, plant morphology, plant taxonomy",

author = "Sebastian Hatt and Low, {Yee Wen} and Burslem, {David F.R.P.} and Middleton, {David J.} and Biffin, {E. D.} and Olivier Maurin and Lucas, {Eve J.}",

note = "YWL was supported by a postgraduate scholarship research grant from the Ministry of National Development, Singapore awarded through the National Parks Board, Singapore (NParks; NParks{\textquoteright} Garden City Fund). YWL also benefited from additional research funding of the School of Biological Sciences (SBS), Nanyang Technological University (NTU) awarded to Victor A. Albert and Charlotte Lindqvist. Yap Jing Xuan, Bazilah Ibrahim and Serena Lee assisted with herbarium materials at SING. We thank Ian Turner for continued support on questions of general and Syzygium-specific nomenclature. We gratefully acknowledge the thoughtful reviews of an anonymous reviewer and Dr Wuu Kuang Soh, both of which significantly enhanced the report presented here.",

year = "2023",

month = may,

doi = "10.1093/botlinnean/boac065",

language = "English",

volume = "202",

pages = "93--109",

journal = "Botanical Journal of the Linnean Society",

issn = "0024-4074",

publisher = "Oxford University Press (OUP)",

number = "1",

}

TY - JOUR

T1 - A morphological analysis of Syzygium, with a focus on fibre bundles and description of a new subgenus

AU - Hatt, Sebastian

AU - Low, Yee Wen

AU - Burslem, David F.R.P.

AU - Middleton, David J.

AU - Biffin, E. D.

AU - Maurin, Olivier

AU - Lucas, Eve J.

N1 - YWL was supported by a postgraduate scholarship research grant from the Ministry of National Development, Singapore awarded through the National Parks Board, Singapore (NParks; NParks’ Garden City Fund). YWL also benefited from additional research funding of the School of Biological Sciences (SBS), Nanyang Technological University (NTU) awarded to Victor A. Albert and Charlotte Lindqvist. Yap Jing Xuan, Bazilah Ibrahim and Serena Lee assisted with herbarium materials at SING. We thank Ian Turner for continued support on questions of general and Syzygium-specific nomenclature. We gratefully acknowledge the thoughtful reviews of an anonymous reviewer and Dr Wuu Kuang Soh, both of which significantly enhanced the report presented here.

PY - 2023/5

Y1 - 2023/5

N2 - Syzygium is a large genus (1200-1500 species) of Old World tropical trees, currently divided into five subgenera containing widely different numbers of species. Syzygium subgenus Perikion was defined by the presence of fibre bundles in the hypanthium wall, although until now this feature has not been investigated or images published. Furthermore, discovery of fibre bundles in certain species outside Syzygium subgenus Perikion calls for reassessment of the subgenus. In this paper, a morphological analysis is presented for all species previously associated with Syzygium subgenus Perikion or known to have fibre bundles. Results indicate the need for description of a new subgenus, Syzygium subgenus Oborapi, characterized by a distinctly goblet-shaped calyx, presence of fibre bundles in the hypanthium/mesocarp, prominent black lenticels on the abaxial leaf surface, ascending ovule orientation and species diversity centred on the Sunda Shelf. Fibre bundles are photographed and documented for the first time from a range of species and at different magnifications. A preliminary list of species is presented for Syzygium subgenus Perikion and Syzygium subgenus Oborapi, with recommendations for further investigation.

AB - Syzygium is a large genus (1200-1500 species) of Old World tropical trees, currently divided into five subgenera containing widely different numbers of species. Syzygium subgenus Perikion was defined by the presence of fibre bundles in the hypanthium wall, although until now this feature has not been investigated or images published. Furthermore, discovery of fibre bundles in certain species outside Syzygium subgenus Perikion calls for reassessment of the subgenus. In this paper, a morphological analysis is presented for all species previously associated with Syzygium subgenus Perikion or known to have fibre bundles. Results indicate the need for description of a new subgenus, Syzygium subgenus Oborapi, characterized by a distinctly goblet-shaped calyx, presence of fibre bundles in the hypanthium/mesocarp, prominent black lenticels on the abaxial leaf surface, ascending ovule orientation and species diversity centred on the Sunda Shelf. Fibre bundles are photographed and documented for the first time from a range of species and at different magnifications. A preliminary list of species is presented for Syzygium subgenus Perikion and Syzygium subgenus Oborapi, with recommendations for further investigation.

KW - Myrtaceae

KW - Oborapi

KW - Perikion

KW - plant morphology

KW - plant taxonomy

UR - http://www.scopus.com/inward/record.url?scp=85165641234&partnerID=8YFLogxK

U2 - 10.1093/botlinnean/boac065

DO - 10.1093/botlinnean/boac065

M3 - Article

AN - SCOPUS:85165641234

SN - 0024-4074

VL - 202

SP - 93

EP - 109

JO - Botanical Journal of the Linnean Society

JF - Botanical Journal of the Linnean Society

IS - 1

ER -

A morphological analysis of Syzygium, with a focus on fibre bundles and description of a new subgenus

Abstract

Bibliographical note

Data Availability Statement

Keywords

Access to Document

Other files and links

Fingerprint

Cite this