|
|
|
|
|
| Saunders,Janice G.. |
| Waltheria carmensarae, a homostylous species from northeastern Argentina, southeastern Paraguay, and central Venezuela, and W. procumbens, a distylous species from northeastern Paraguay, are newly described and illustrated. Both species share along with some other species of Waltheria sect. Waltheria and all of sect. Stegowaltheria an elongate-plumose stigma, adaxial petals with raised succulent midribs, petals adnate to the stamen tube for more than 0.8 mm in length, and a capsule with hardened endocarp only at the apex. Waltheria carmensarae resembles the distylous species W. preslii, endemic to coastal Guerrero and Oaxaca, Mexico, whereas W. procumbens appears to be close to W. albicans, primarily from Brazil where distylous, with scattered homostylous... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waltheria; Hermannieae; Byttnerioideae; Malvaceae s.l.; Argentina; Paraguay; Venezuela; Pollen morphology. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932005000100013 |
| |
|
|
| Coutinho,Thales Silva; Colli-Silva,Matheus; Alves,Marccus. |
| ABSTRACT This work validates two Waltheria species endemic to campo rupestre with complete descriptions, illustrations, updated geographical distributions and comments on taxonomic affinities. Waltheria biribiriensis and Waltheria terminans are restricted to the Southern Espinhaço Province in eastern South America, occurring on mountain tops where campo rupestre vegetation prevails. Furthermore, Waltheria brachypetala, a species of dry deciduous forests in Brazil that was long considered as conspecific with W. ferruginea due to its shrubby lifeform and similar indumentum, is re-established based on differences of phyllotaxy, blade shape and inflorescence type. The first occurrence records of W. brachypetala in the state of Paraíba are also provided, as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campo rupestre; Endangered species; Hermannieae; Heterostily; Malvales; Re-establishment; Vulnerable species. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000300449 |
| |
|
|
|
