Levantamento florístico das Gesneriaceae do município de Santa Teresa, Espírito Santo, Brasil

• Autor(a) principal: Rossini, Josiene
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2518
• topic: Gesneriaceae; Taxonomia; Santa Teresa; Gesneriaceae; Taxonomy; Santa Teresa; CNPQ::CIENCIAS BIOLOGICAS::BOTANICA

This work comprises a taxonomic treatment and an analysis of the geographical distribution of the family Gesneriaceae in Santa Teresa (19°56'10"S and 40°36'06"W), Espírito Santo, Brazil. Besides a detailed survey of the already existing collection of Gesneriaceae hold by the MBML herbarium, additional field collections were conducted monthly, from February 2009 to January 2010, in Santa Teresa, ES, in areas under official preservation and in well kept remnants located in private properties. The samples consisted of fertile or sterile branches, and were deposited in the herbarium VIC, Federal University of Viçosa, with duplicates in the herbarium MBML. The identification were based on taxonomic literature, experts collaboration and comparison with specimens at the herbarium MBML. Identification keys to genera and species were elaborated, followed by comments about taxonomy, phenology, ecology and distribution. Each species was illustraded. The study revealed 24 species, distributed in six genera. Sinningia Nees. is the most diverse genus (9 spp.) followed by Nematanthus Schard. (7 spp.). Nematanthus crassifolius (Schott) Wiehler and Sinningia villosa Lindl. were the most frequently encountered taxa, as they occur in different localities and microhabitats of the municipality. Among the species studied, six distribution patterns were established: Columnea sanguinea (Pers.) Steud. presents a Neotropical distribution (1%), and the remaining species occur exclusively in Brazil (99%). The pattern "endemic Southeast" is the most frequent (representing 33% of the species), five species are endemic to the state of the ES and a new species (publication submitted), is restricted to Santa Teresa. Studied taxa inhabiting biomes: Atlantic Forest, Amazon Forest, Cerrado and Caatinga, and 67% (16) of these taxa are unique to the Atlantic Forest. The results of this show that the municipality of Santa Teresa, and has been regarded as one of the pilot areas of the Biosphere Reserve of the Atlantic Forest in Espírito Santo, is also a stronghold of diversity and endemism of species of Gesneriaceae from the state of Espirito Santo and the region of southeastern Brazil.