The morphological, anatomical and palynological features of Cousinia eleonorae Hub.-Mor. and Cousinia humilis Boiss. are provided along with their taxonomic significance. Their expanded description, distribution map and coloured photographs are also given. The morphological characteristics of leaves, phyllaries are taxonomically significant for distinguishing Cousinia species. In addition, the micromorphological characteristics of pollen grains and achenes are provided with the use of scanning electron microscopy. Anatomical characters such as number of cortex cells, number of vascular bundles and midrib shape are found to be significant characters. Moreover, exine sculpturing pattern and shape of pollen grains can be used for taxonomic purposes.
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Univ Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, BrazilUniv Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, Brazil
Trovo, Marcelo
Stuetzel, Thomas
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Ruhr Univ Bochum, Fac Biol & Biotechnol, D-44780 Bochum, GermanyUniv Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, Brazil
Stuetzel, Thomas
Scatena, Vera Lucia
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Univ Estadual Paulista, Inst Biociencias, Dept Bot, BR-13506900 Rio Claro, SP, BrazilUniv Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, Brazil
Scatena, Vera Lucia
Sano, Paulo Takeo
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Univ Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, BrazilUniv Sao Paulo, Inst Biociencias, Lab Sistemat Vegetal, BR-05508900 Sao Paulo, Brazil