Morphology of trichomes in Tibouchina sect. Pleroma (D-Don) Cogn. (Melastomataceae)

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Data

1999-01-01

Autores

Guimaraes, PJF
Rana, N. T.
Martins, A. B.

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ISSN da Revista

Título de Volume

Editor

Inst Tecnologia Parana

Resumo

The Melastomataceae display greater trichome diversity. Dr. Wurdack, in his Atlas of hairs, recognized 46 types of trichomes for the Neotropical Melastomataceae through the Scanning Electron Microscope (SEM), and referred 17 of them to the genus Tibouchina. The trichome morphology has been extensively used in the delimitation of the taxa in Melastomataceae, as well as in previous studies by Cogniaux, the monograph of Brazilian Melastomataceae published in 1885. The morphology of the trichomes was essential for the delimitation of several species in Tibouchina section Pleroma. The use of SEM provided the best characterization of the 15 different types of trichomes recognized among the 41 species examined. These were described based on the morphological appearance, both optical microscopy and scanning electron microscopy, and illustrated by scanning electron micrographs and photomicrographs.

Descrição

Palavras-chave

trichome, Morphology, Melastomataceae, Tibouchina

Como citar

Brazilian Archives of Biology and Technology. Curitiba-Paraná: Inst Tecnologia Parana, v. 42, n. 4, p. 485-493, 1999.