Genus Archidendron F.Muell. (Fabaceae) in Southeast Asia (SEA) : Distribution of the species and its flowering-fruiting pattern based on the specimens from Kew Herbarium (K)

Nurul Aida Syazalina, Daud (2022) Genus Archidendron F.Muell. (Fabaceae) in Southeast Asia (SEA) : Distribution of the species and its flowering-fruiting pattern based on the specimens from Kew Herbarium (K). [Final Year Project Report] (Unpublished)

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Abstract

The genus Archidendron is a large genus in Fabaceae family. However, this genus is still poorly studied and understood. In this study, the distribution in Southeast Asia (SEA) and the flowering-fruiting pattern of this genus based on digital specimens from Kew Herbarium (K) were determined. The distribution maps were generated using ArcView GIS 3.3 software based on the longitude and latitude coordinates stated on the specimen’s label. The flowering and fruiting pattern bar chart was produced using Excel Spreadsheet. From the 278 specimens documented, there are 32 Archidendron species recorded in SEA. Archidendron is widely distributed in SEA where Malaysia has the most species recorded with 10 species while Myanmar and Singapore have the least species recorded with one species respectively. Philippines has the most specimens collected with 179 specimens recorded. The habitat preferred by genus Archidendron is lowland rainforest and only a few species could be found in swamp or montane forest. In general, this genus flowers and fruits throughout the year. In this study, the flowering and fruiting pattern of only one species, Archidendron clypearia (Jack) I.C. Nielsen was determined. This is due to insufficient data to determine the pattern. The flowering and fruiting pattern for A. clypearia shows that it flowers and fruits throughout the year except for November and December where there was no record for the fruiting specimens. More specimens should be observed to have a better understanding of the distribution and the flowering-fruiting pattern of this genus.

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