Chresta

Using genomic data to develop SSR markers for species of Chresta (Vernonieae, Asteraceae) from the Caatinga

Chresta is a genus mostly endemic to Brazil that presents several rupicolous species with naturally fragmented distributions. Aiming to facilitate studies about genetic diversity and structure in these species, we developed a set of 22 nuclear and 6 …

Phylogenomics Yields New Insight Into Relationships Within Vernonieae (Asteraceae)

Asteraceae, or the sunflower family, is the largest family of flowering plants and is usually considered difficult to work with, not only due to its size, but also because of the abundant cases of polyploidy and ancient whole-genome duplications. …

Chresta artemisiifolia (Vernonieae, Asteraceae), a new endangered species from a recently created protected area in the Brazilian Caatinga

Chresta artemisiifolia, a new species from northern Bahia, is described and illustrated. This species occurs on rock outcrops amidst the dry Caatinga domain, and is morphologically related with C. harleyi, C. hatschbachii , C. martii and C. …

Two New Rupicolous Species of Chresta (Asteraceae, Vernonieae) from the Brazilian Caatinga

Two new rupicolous and endangered species from the Caatinga are described and illustrated. Chresta heteropappa is restricted to the brejos de altitude (montane forests) from Northeastern Ceará, growing on granite inselbergs. Chresta subverticillata …

The systematic value of pollen morphology in Chresta Vell. ex DC. (Vernonieae, Asteraceae)

Chresta encompasses 15 species of Compositae, mostly restricted to the Brazilian Cerrado and Caatinga. Previous taxonomic studies have shown that there is variation in pollen types among species, but did not fully describe them. In order to provide …

A new species of Chresta (Vernonieae, Asteraceae) endemic to the Mata Atlântica Domain, Brazil

Chresta filicifolia is described and illustrated. It is a perennial herb known only from open vegetation on top of small rock outcrops at the Rio Doce Valley in Eastern Minas Gerais, Southeastern Brazil. This is the first record of a species of …

New names in Vernonieae (Asteraceae) of Northeastern Brazil