Full text
| |
| Author(s): |
Andréa Onofre de Araujo
Total Authors: 1
|
| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) |
| Defense date: | 2007-04-17 |
| Examining board members: |
Vinicius Castro Souza;
Alain Pilippe Chautems;
Paulo Takeo Sano;
João Semir
|
| Advisor: | Vinicius Castro Souza |
| Abstract | |
Gloxinia sensu Wiehler (1976) (=Gloxinia s.l.) is not monophyletic and its 15 recognized species should be distributed in 7 genera: Gloxinella, Gloxinia s.s., Gloxiniopsis, Mandirola, Nomopyle, Seemannia and Sphaerorrhiza. Phylogenetic analyses based on morphological and macromolecular data (nuclear: ITS and ncpGS; plastidial trnL-F and rpl16) confirmed the placement of the species recognized in Gloxinia s.l. in other genera (except for the type species) and also the exclusion of Sphaerorrhiza from Gloxinieae (forming a different tribe). These analyses also clarified the placement of Sphaerorrhizeae as more closely related to the Gloxinieae + Gesnerieae clade than to the other Gesnerioideae tribes. This study presentes taxonomic revisions of each genus that include previously Gloxinia s.l. recognized species, and also one previously unknown species included in the previously unknown monospecific genus Chautemsia. The taxonomic portion includes twenty on species from wich thirteen were previously recognized in Gloxinia s.l., five were recognized in other genera (Anodiscus, Goyazia, Koellikeria and Niphaea), and three are previously unknown species (one included in the previously unknown genus). Eleven lectotypifications, one neotypification, four new synonymizations (among species and genera), and five new combinations are made in this study. This study also includes commentaries, descriptions, illustrations, observations about geographic distribution, flowering and fructification periods of the genera and species, and also the keys to the genera included in this study and to the species included in each of these genera. (AU) | |