A New Species of Echinopepon from Argentina and Taxonomic Notes on the Subtribe Cyclantherinae (Cucurbitaceae)
Echinopepon disjunctus , a new species of the Echinopepon torquatus species-group from the Yungas rainforest of Jujuy (Argentina), is described and illustrated. Echinopepon coulteri is here excluded from the E. torquatus group on inflorescence and floral characters; a key to the remaining species of the group is included. In addition, the floral structure of the monotypic genus Pseudocyclanthera and four species of Rytidostylis is reviewed. The aestivation of the corolla, invagination at the base of the hypanthium, nectar-secreting trichomes, synanther, and pollen morphology support a closer relationship between Pseudocyclanthera and Rytidostylis than between Pseudocyclanthera and Cyclanthera. The receptacular nature of the trichomatous base of the androecial column and style seems to be distinctive for Rytidostylis. A key to the genera Cyclanthera, Pseudocyclanthera, and Rytidostylis is also included.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Regular Paper
Publication date: 2004-07-01
More about this publication?
- 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