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POLLEN MORPHOLOGY OF VOCHYSIACEAE TREE SPECIES IN THE STATE OF SANTA CATARINA, SOUTHERN BRAZIL
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Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil / Universidade Federal do Rio de Janeiro. Instituto de Geociências. Departamento de Geologia. Laboratório de Palinologia. Rio de Janeiro, RJ, Brasil.
Instituto de Botânica. São Paulo, SP, Brasil.
Instituto de Botânica. São Paulo, SP, Brasil.
Abstract
Tropical Vochysiaceae includes mainly trees, and also shrubs and subshrubs. Three genera and
seven species are present in the Brazilian state of Santa Catarina. The pollen morphology of six species of
trees, belonging to three genera of the Vochysiaceae A. St-Hil. family, was studied. Herbaria samples were
obtained, processed and treated by standard methods. The pollen grain morphology of Callisthene, Qualea and
Vochysia is distinct. Medium sized pollen grains occur in Vochysia species, and small ones in Callisthene and
Qualea. Specific characteristics were considered at species level [C. castellanosii H. F. Martins, C. kuhlmannii
H. F.Martins, Qualea cordata Spreng var. cordata, Q. cryptantha (Spreng) Warm. var. cryptantha, Vochysia
magnifica Warm. and V. tucanorum Mart.]. The presence of a fastigium (vestibulum) and a thin space devoid of
nexine fixing the boundary of the apertural area is characteristic of Qualea and Vochysia species only.
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