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Taxonomy review of neotropic species of extra-amazonian Sloanea L. (Elaeocarpaceae)

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Author(s):
Daniela Sampaio Silveira
Total Authors: 1
Document type: Doctoral Thesis
Press: Campinas, SP.
Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia
Defense date:
Examining board members:
Vinicius Castro Souza; Ana Maria Goulart de Azevedo Tozzi; Luiza Sumiko Kinoshita; Marcus Alberto Nadruz Coelho; Lucia Rossi
Advisor: Vinicius Castro Souza
Abstract

Elaeocarpaceae includes 15 genera, witch approximately 500 species distributed in tropical and subtropical regions of the globe, except for African and European continents. Sloanea comprises 120 taxa, of witch about 40 occur in Brazil in several vegetation types, but mainly in the Amazon Forest and in the Atlantic Forest. This thesis revises the taxonomy of the neotropical species of extra-amazon Sloanea genus. This study consisted of literature review, consultation with the collections of major Brazilian and foreign herbaria, and collection expeditions in areas of natural occurrence of taxa of the genus. In general, based on external morphology, the characterization of Sloanea comprises large trees endowed with buttressed roots, simple leaves, flowers witch sepals that may cover or not the reproductive organs in pre-anthesis phasis, stamens with the connective continued into a small knob, acuminate, acute or filiform awn, fruit covered with rigid or flexible bristles, sometimes unarmed. In this thesis 19 lectotypes her designated were defined, and four new synonyms, one doubtful name, five illegitimate names and six nude names were found. From the 17 species that were identified in the studied area, six of them were unknown to science: S. fasciculate, S. filiforms, S. hatschbachii, S. petala, S. subssesilis, S. uniflora. (AU)