Phoon, S.N. (2012) A new variety of Strombosia ceylanica (Olacaceae) from Malaysia. Kew Bulletin, 67 (2). pp. 191-203.

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Abstract

In the treatment of Strombosia for the Flora of Peninsular Malaysia, the doubtful taxon, Strombosia sp. A sensu Whitmore was re-examined. This taxon is recorded from Malaysia and is identified to be closely related to Strombosia ceylanica Gardner due to the presence of an obvious nectar disc in the flower buds and their similarities in fruits. However, Strombosia sp. A shows a remarkable leaf size difference from S. ceylanica. Therefore, a standard morphological taxonomic revision and morphometric analysis were carried out to assess the status of Strombosia sp. A. A total of 131 collections from India, Sri Lanka, Sumatra, Peninsular Malaysia, Singapore, Borneo and Java were studied. Of these, 12 specimens of Strombosia sp. A and 47 of S. ceylanica were selected for morphometric analysis and 14 vegetative and reproductive characters were analysed using Divisive Hierarchical Clustering and Principal Components Analysis. Results showed that Strombosia sp. A formed a distinct clade, well-separated from S. ceylanica. Description of Strombosia sp. A as a new variety is justified by the results of morphometric analysis and consistency of its larger-sized leaves, while reproductively, it is similar to S. ceylanica. This new variety is described here as Strombosia ceylanica Gardner var. macrophylla Phoon. Enumeration and illustration of this new variety are provided here.

Item ID:	38040
Item Type:	Article (Research - C1)
ISSN:	1874-933X
Keywords:	morphometric analysis, taxonomy
Funders:	National Council for Scientific Research and Development (MPKSN)
Date Deposited:	07 Jul 2015 04:45
FoR Codes:	06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060310 Plant Systematics and Taxonomy @ 100%
SEO Codes:	96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960803 Documentation of Undescribed Flora and Fauna @ 100%
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