التفاصيل البيبلوغرافية
| العنوان: |
Systematic analysis of Dendrobium Swartz section Dendrocoryne in the Australian region. |
| المؤلفون: |
Adams, P. B., Burke, J. M., Lawson, S. D. |
| المصدر: |
Plant Systematics & Evolution; Aug2006, Vol. 260 Issue 1, p65-80, 16p, 4 Black and White Photographs, 1 Diagram, 6 Charts, 5 Graphs, 1 Map |
| مصطلحات موضوعية: |
DENDROBIUM, PHYLOGENY, BIOLOGICAL evolution, ORCHIDS, FLORAL morphology |
| مصطلحات جغرافية: |
NEW Caledonia, LORD Howe Island (N.S.W.) |
| مستخلص: |
Dendrobium sect. Dendrocoryne is a difficult taxonomic group of allied species and species complexes, occurring on the eastern Australian coastline, Lord Howe Island and New Caledonia. Significant morphological characters were assessed from all key areas of the distribution range. Patterns of variation between species, varieties and hybrids were investigated by principal coordinate analysis. The analyses affirm 12 species in the sect. Dendrocoryne described by Schlechter (1912, 1982) and Dockrill (1969, 1992), including a cluster of small statured D. gracilicaule, D. adae, D. fleckeri, and D. finniganense, and three variable species complexes – D. speciosum, D. kingianum and D. tetragonum. Recently described D. finniganense and D. callitrophilum are interpreted as members of the section. Phylogenetic relationships are presented based on parsimony analysis of 31 morphological characters. Analyses do not support proposals to recognize new genera for D. tetragonum, D. callitrophilum and D. aemulum, or to create new species within D. tetragonum, D. jonesii, D. speciosum and D. kingianum. The phylogeny indicates that rainforest taxa are earlier lineages and xerophytic taxa are more derived. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
