Two New Rupicolous Species of Chresta (Asteraceae, Vernonieae) from the Brazilian Caatinga
Abstract—
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 occurs in Northern Bahia, inhabiting quartzitic outcrops on the Chapada Diamantina mountain range. Relationships of the two new taxa to other Chresta species are discussed, and a key for all species occurring in the Caatinga domain is presented, as well as maps and illustrations, including field pictures.
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 occurs in Northern Bahia, inhabiting quartzitic outcrops on the Chapada Diamantina mountain range. Relationships of the two new taxa to other Chresta species are discussed, and a key for all species occurring in the Caatinga domain is presented, as well as maps and illustrations, including field pictures.
Keywords: Chrestinae; Compositae; inselbergs; rock outcrops; seasonally dry tropical forest
Document Type: Research Article
Publication date: 28 December 2018
- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
2011 Impact Factor: 1.517
2011 ISI Journal Citation Reports® Rankings: 87/190 - Plant Sciences
34/45 - Evolutionary Biology - Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Ingenta Connect is not responsible for the content or availability of external websites
Receive new issue alert- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content