Two New Species of Eriocaulon from the Tocantins-Araguaia River Basin, Brazil
Abstract:Two new species, Eriocaulon cylindratum and Eriocaulon araguaiense , from the Tocantins-Araguaia River basin in the Brazilian Cerrado, are described and illustrated. The species are similar, but they differ mainly in both the shape of the capitula and the floral bracts. Eriocaulon araguaiense has hemispheric heads, and obovate, concave floral bracts. Eriocaulon cylindratum is characterized by ovoid or cylindrical heads, and obtrullate, carinate floral bracts. A key to all known Eriocaulon species from Tocantins-Araguaia river basin is presented.
Document Type: Regular Paper
Publication date: July 1, 2011
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- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
2011 Impact Factor: 1.517
2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences
34/45 - Evolutionary Biology
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