Evolvulus flavus sp. nov. (Convolvulaceae) from the Brazilian Caatinga

Abstract

Evolvulus flavus is a new species of Convolvulaceae found in the semiarid region of Paraíba State, Brazil. It is characterized by flowers with a yellow corolla and 4-locular ovary. Illustrations and taxonomic notes are presented. Only four individuals of this new species have been located, resulting in its classification as 'Endangered' (EN) in accordance with the IUCN criteria.

Convolvulaceae no Parque Ecológico Engenheiro Ávidos, Alto Sertão Paraibano, Nordeste do Brasil

“…Fruto não observado. Até o momento conhecida exclusivamente no PECEA, onde foram encontrados apenas quatro indivíduos restritos ao platô da Serra, em áreas sombreadas (Bandeira et al 2017).…”

“…Trata-se de uma espécie recentemente descrita (Bandeira et al 2017), facilmente diferenciada das demais representantes de Evolvulus por apresentar corola amarela, característica rara para o gênero.…”

Ipomoea lanifolia sp. nov. (Convolvulaceae), a new species endemic to the Ibiapaba plateau in northeastern Brazil

“…Several new species of Convolvulaceae have been described recently for Brazil (Bandeira et al 2017;Wood et al 2017aWood et al , 2017bWood et al , 2017cWood & Scotland 2017d;Santos et al 2019Santos et al , 2020Santos et al 2020a,b,c), many of them endemic to the northeastern region of that country (Wood et al 2017a;Santos et al 2019Santos et al , 2020Santos et al 2020a,b,c). That area is primarily covered by "Caatinga" vegetation -heterogenous seasonally dry forests that experience long dry periods and irregular rainfall (Araújo & Martins 1999).…”