Manihot allemii sp. nov. (Euphorbiaceae s.s.) with entire and unlobed leaves from northern Brazil,with notes about foliar anatomy |
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| Authors: | Marcos José da Silva Laís de Souza Inocencio Alexandre Antonio Alonso |
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| Institution: | 1. Laboratório de Morfologia e Taxonomia Vegetal, Departamento de Botanica, Univ. Federal de Goiás, Goiania, Brazil;2. Postgraduate Student, Postgraduate Program in Plant Biodiversity, Univ. Federal de Goiaás, Goia nia, Brazil;3. Laboratório de Anatomia Vegetal, Departamento de Botanica, Univ. Federal de Goiás, Goiania, Brazil |
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| Abstract: | Manihot allemii M. J. Silva is described and illustrated as a new species, and its morphological affinities and conservation status is discussed. It is most similar to M. salicifolia Pohl in having a subshrubby and erect habit and in the general aspect of its unlobed leaves, but differs from it in having leaves that are conspicuously petiolate, an inflorescence that is a congested spike‐like thyrse, entire and diminute bracts and bracteoles subtending flowers of both sexes, pistillate calyx that is deeply lobed with oblong lobes, and staminate flowers with 8 or 10 stamens. Both species belong to a group of 14 species recognized by their possession of entire and unlobed leaves, which are the subject of taxonomic studies by the second author. Some notes on the leaf anatomy of species of Manihot that have entire and unlobed leaves are also presented. |
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