Elaeocarpus sedentarius sp. Nov. (Elaeocarpaceae) - morphometric analysis of a new, rare species from eastern Australia

Maynard, David, Crayn, Darren, Rossetto, Maurizio, Kooyman, Robert, and Coode, Mark (2008) Elaeocarpus sedentarius sp. Nov. (Elaeocarpaceae) - morphometric analysis of a new, rare species from eastern Australia. Australian Systematic Botany, 21 (3). pp. 192-200.

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To assess the status of a putative new species of Elaeocarpus L. (Elaeocarpaceae) from north-eastern New South Wales (NSW), with respect to the morphologically similar E. blepharoceras Schltr. from New Guinea, we undertook morphometric analysis of 11 vegetative attributes measured on 11 specimens of the putative new species and eight of E. blepharoceras. Cluster analysis (flexible UPGMA) and ordination (PCC) separates highland specimens of E. blepharoceras from the NSW material plus lowland E. blepharoceras. Furthermore, the ordination shows some separation of the NSW material into Koonyum Range and Nightcap Range groups. Although it is not clearly differentiated from lowland E. blepharoceras on morphometric analysis, description of the NSW material as E. sedentarius D.J.Maynard & Crayn is justified by (1) additional features such as the anther awns (short and sparsely hairy in E. sedentarius and much longer and densely bristly in E. blepharoceras), variation in the number of locules (3(–4) in E. sedentarius and (2–)3 in E. blepharoceras), leaf margin features (short setae terminating veins on leaf margins of E. blepharoceras, lacking in E. sedentarius) and (2) geographic isolation (>2000 km) is likely to prevent gene flow. The distribution, relationships and conservation status of E. sedentarius are discussed.

Item ID: 5981
Item Type: Article (Research - C1)
ISSN: 1446-5701
Keywords: taxonomy; Elaeocarpus; rainforest; morphometrics; new species
Date Deposited: 03 Feb 2010 04:22
FoR Codes: 06 BIOLOGICAL SCIENCES > 0603 Evolutionary Biology > 060399 Evolutionary Biology not elsewhere classified @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960803 Documentation of Undescribed Flora and Fauna @ 100%
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