Seed micromorphology and its taxonomic significance to Xyris (Xyridaceae, Poales)
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Undergraduate course
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Springer Nature
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Article
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Acesso aberto
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Abstract
The seed micromorphology was studied in eight species of Xyris (Xyridaceae) with taxonomic purposes. The results show that the presence of longitudinal endotegmic ridges in the seed coat is a pattern for the genus and that the shape of these ridges differentiates among the species. The following characteristics are also useful to identify the species: shape and size of the seed, number of cell rows between the ridges, and the striation pattern of the seed coat. Based on these characteristics, a standard terminology is proposed to describe the seed coat in species of the genus. An identification key for the studied species is also provided.
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English
Citation
Revista Brasileira de Botanica, v. 39, n. 2, p. 721-727, 2016.
