Identification key for lycophytes and ferns from the Picinguaba and Santa Virgínia Nuclei, Parque Estadual da Serra do Mar, Ubatuba, SP, Brazil

Abstract

This work contributes to the knowledge of the fern and lycophytes diversity in the Picinguaba and Santa Virginia Nuclei, Parque Estadual da Serra do Mar (PESM), Ubatuba, São Paulo, Brazil, as well as to provide subsidies to identification of the found taxa in these areas. In total, 30 collecting expeditions were conducted and the vouchers were deposited at UEC Herbarium. We have identified 135 species distributed in 53 genera and 19 families for both areas. The most representative families were Polypodiaceae (28 species) and Dryopteridaceae (19 species), whereas Asplenium (12 species), Blechnum and Elaphoglossum (8 species each) were the most important genera. Epiphytic species predominated (62 overall), probably due to the presence of favorable habitats. Among the taxa, 41 are considered endemic from Brazil, 35 of them endemic to the Brazilian Atlantic Forest. Five species are classified as vulnerable according to the “Official list of endangered species in the State of São Paulo”: Elaphoglossum macahense (Fée) Rosenst., Anetium citrifolium (L.) Splitg., Asplenium muellerianum Rosenst., Cyathea glaziovii (Fée) Domin, and Thelypteris angustifolia (Willd.) Proctor, which emphasizes the importance of preservation areas such as the Parque Estadual da Serra do Mar. An identification key has been elaborated to help with the recognition of these groups in Picinguaba and Santa Virgínia Nuclei.

Richness of ferns and lycophytes from Tijuca National Park, an urban forest

“…Pteridaceae, Dryopteridaceae, and Polypodiaceae are always among the richest families in floristic surveys of dense rain forests (e.g., Matos et al 2010Matos et al , 2020Nóbrega et al 2016;Mazziero et al 2015;Coelho et al 2017;Mynssen & Windisch 2004). A study on floristic diversity in the state of Rio de Janeiro shows that the municipality of Rio de Janeiro is third richest in the number of species of ferns and lycophytes (Coelho et al 2017).…”

Samambaias e licófitas de um remanescente de floresta paludosa no interior do Estado de São Paulo, Brasil

“…No Estado de São Paulo são registradas aproximadamente 618 espécies de samambaias e licófitas (Prado et al 2015), com diversidade mais elevada nas regiões de Mata Atlântica litorâneas, mas também com uma expressiva representatividade em áreas do interior do Estado (Prado 1998. Para as regiões de Mata Atlântica com predomínio de floresta ombrófila densa do Estado, destacam-se os estudos de Athayde-Filho et al (2003), Boldrin & Prado (2007), , Nóbrega et al (2016), Prado & Labiak (2009), Salino & Almeida (2008). Já para o interior paulista, nos cerrados, florestas estacionais e paludosas, pode-se citar: Colli et al (2003Colli et al ( , 2004aColli et al ( ,b, 2007, Mazziero & Nonato (2015), Nóbrega & Prado (2008), Pietrobom et al (2012), Salino (1996) e Salino & Joly (2001).…”