The project “Survey and Distribution of Orchids of the Ecological Reserve of Guapiaçu” was developed by OrquidaRio Orquidófilos Associados, between November 2006 and September 2007. Along the trails we recorded and mapped 107 species of orchids, distributed in 51 genera. Of these, 44 species are new occurrences for Munic. of Cachoeiras de Macacu. Many of the species that occur in REGUA can be found in other preserved areas of Serra dos Órgãos, some of which have a wider distribution. The objectives of this research were:

- to know and map the orchids that occur in REGUA;
- provide information so that orchids can be used as additional material for the local environmental education program;
- publicize the area’s orchid flora so that they are included and appreciated as part of REGUA’s ecotourism attractions.
Subsequently, the list of orchids that occur in REGUA grew a lot, with the addition of several micro-orchids identified by Helmut Seehawer, a great connoisseur of our flora. Some of the species found during the work were reproduced in the laboratory of Orquidário Quinta do Lago, at Itaipava and after some years some were reintroduced back into the reserve by members of OrquidaRio. Now, with the construction of the greenhouse, many of the species that occur in REGUA’s forests will be part of this collection that aims to show visitors the charms and varieties of the great Orchidaceae family.