Variation in the Dendrobium speciosum (Orchidaceae) complex: a numerical approach to the species problem
Burke, Jacinta M., and Adams, Peter B. (2002) Variation in the Dendrobium speciosum (Orchidaceae) complex: a numerical approach to the species problem. Australian Systematic Botany, 15 (1). pp. 63-80.
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View at Publisher Website: http://dx.doi.org/10.1071/SB01005
The Dendrobium speciosum Sm. (Dendrobium sect. Dendrocoryne: Orchidaceae) complex is a taxonomic problem because of intrapopulational and interpopulational heterogeneity. The pattern of morphological variation exhibited is partly associated with geographical regions in eastern Australia, from the base of Cape York Peninsula to eastern Victoria. Variation within the species was investigated by multivariate and univariate analyses of data obtained from living specimens. The analyses that differentiate section Dendrocoryne species do not form discrete groups for previously recognised regional or any other variants of Dendrobium speciosum, providing no support for recognising subgroups of Dendrobium speciosum at species level. Dendrobium speciosum is regarded as a variable species forming a complex continuum. In some designated areas, the varieties speciosum, hillii, grandiflorum, curvicaule, pedunculatum and capricornicum can be retained. It is strongly recommended that all individuals be specified by their geographical origin since this is the only system that provides unambiguous identification.
|Item Type:||Article (Refereed Research - C1)|
|FoR Codes:||06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060799 Plant Biology not elsewhere classified @ 100%|
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%|
|Deposited On:||11 Nov 2010 11:50|
|Last Modified:||12 Feb 2011 20:26|
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