Abstract
This paper compares the partial Orchidaceae floras of Itacolomi State Park in Ouro Preto, Minas Gerais, Brazil, in two different periods. The first is represented by all colections prior to 1980, while the second comprises those of the past five years. Floral analyses document the recent collections.
Highlights
During the floristic survey of ltacolomi State Park above Ouro Preto in Minas Gerais, Brazil, (Figura 1), Marcos Peron had asked me to identify the collected orchid specimens and to rnake a list of species
I added those which I had collected during five recent expeditions
Figura 1: Location of collecting site. This survey is preliminary in the sense that other species may be refound or discovered in the referred biota
Summary
During the floristic survey of ltacolomi State Park above Ouro Preto in Minas Gerais, Brazil, (Figura 1), Marcos Peron had asked me to identify the collected orchid specimens and to rnake a list of species. To his specimens, I added those which I had collected during five recent expeditions. Denser stands of woody plants occur only in places where the geomorphology permits accurnulation of deeper and moister substrates (Le. ventaroles etc.), and protects the locations from strong winds Another factor which profoundly affects their occurence is anthropic management -tires, overgrazing by eattle, etc.) The Orchidaceae that survive the eombination of the above -mentioned factors are of primary interest to my studies, and have been so for years
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