Oligochaeta (plant)
''Oligochaeta'' is a genus of Asian plants in the tribe Cardueae within the family Asteraceae. ''Oligochaeta'' is native to central, southern, and southwestern Asia. They are annual plants that grow in mountain and steppe habitat. It is part of the "''Rhaponticum'' group" in the tribe Cardueae, along with the genera ''Callicephalus'', ''Leuzea'' (including ''Acroptilon'' and ''Rhaponticum''), ''Myopordon'', and ''Ochrocephala''.Hidalgo, O., et al. (2006)Phylogeny of ''Rhaponticum'' (Asteraceae, Cardueae–Centaureinae) and related genera inferred from nuclear and chloroplast DNA sequence data: taxonomic and biogeographic implications.''Annals of Botany'' 97(5), 705-14. It can be distinguished from other genera by its pollen. ; Species * ''Oligochaeta divaricata'' - Caucasus, Iran, Iraq, Syria, Turkey * ''Oligochaeta minima'' - Xinjiang, Kazakhstan, Turkmenistan, Uzbekistan, Iran, Afghanistan * ''Oligochaeta ramosa'' - Indian Subcontinent * ''Oligochaeta tomentosa'' - Caucasus, I ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Augustin Pyramus De Candolle
Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle had established a new genus, and he went on to document hundreds of plant families and create a new natural plant classification system. Although de Candolle's main focus was botany, he also contributed to related fields such as phytogeography, agronomy, paleontology, medical botany, and economic botany. De Candolle originated the idea of "Nature's war", which influenced Charles Darwin and the principle of natural selection. de Candolle recognized that multiple species may develop similar characteristics that did not appear in a common evolutionary ancestor; a phenomenon now known as convergent evolution. During his work with plants, de Candolle noticed that plant leaf movements follow a near-24-hour cycle in constant light, suggestin ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]