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TWO NEW SUBSPECIES OF TROPAEOLUM (TROPAEOLACEAE) FROM THE IV REGION (COQUIMBO), CHILE Gayana Botánica
Watson,John M.; Flores,Ana R..
Two new subspecies of Tropaeolum hookerianum Barn. are described. Apart from T. hookerianum subsp. austropurpureum presented here, only one other Andean-Pacific temperate Tropaeolum, T. azureum Bert. ex Colla, has blue to purple flowers. The second taxon, T. hookerianum subsp. pilosum, is distinguished by pilose pedicels, a feature unique among Andean-Pacific temperate species. Both novelties are Chilean endemics restricted to the IV Region (Coquimbo), as also is the nominate subspecies. All three are allopatric, and considered together extend the species' range to the north, to the south and to the east. Their characters and interrelationships pose implications for Tropaeolum evolution which are likely to be of interest to exponents of phylogenetics...
Tipo: Journal article Palavras-chave: Tropaeolum L.; Flora of Chile; Coquimbo; Endemics; New taxa.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432000000100005
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Seven taxonomic discoveries in Annonaceae from south-eastern Central America Naturalis
Erkens, R.H.J.; Maas, P.J.M.; Chatrou, L.W.; Schatz, G.E.; Zamora, N..
During fieldwork in Costa Rica and Panama five undescribed species of Guatteria and one new species of Desmopsis were collected and are described here. Additionally, a poorly known species of Pseudomalmea is described.
Tipo: Article / Letter to the editor Palavras-chave: Annonaceae; Desmopsis; Guatteria; Pseudomalmea; Costa Rica; Panama; Endemics.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/525819
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Tropical inselbergs: habitat types, adaptive strategies and diversity patterns Rev. Bras. Bot.
Porembski,Stefan.
Inselbergs are isolated rock outcrops that rise abruptly above the surrounding plains. Granitic and gneissic inselbergs are geologically and geomorphologically old and occur throughout a broad spectrum of climatic zones. They form microclimatically and edaphically dry growth sites that support a highly specialized vegetation. Based on physiognomic criteria a number of habitat types can be distinguished that are widespread on inselbergs (e.g. ephemeral flush vegetation, monocotyledonous mats, rock pools). Three hot spots of global inselberg plant diversity can be identified which are both rich in species and endemics: a) southeastern Brazil, b) Madagascar and c) southwestern Australia.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adaptive traits; Conservation; Endemics; Rock outcrops; Species richness.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000400004
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Distributional patterns in Brazilian Serjania (Sapindaceae) Acta Botanica
Acevedo-Rodriguez,Pedro.
The present paper analyzes the distribution of Serjania in Brazil, by comparing and contrasting the species occuring in three major phytogeographic regions: the Atlantic coast, the planalto, and the Amazon basin. The Atlantic coast region has the highest percent (70%) of species endemic to the area, and shares many species with the planalto region. The planalto region shares most of its species with the Atlantic coast and the neighboring countries, but still has a 33% of endemic species to the area. The Amazon basin has only a 4% of species endemic to the area, with most of the reminder species widely distributed through-out the area.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Serjania; Brazil; Mata Atlântica; Planalto; Amazon basin; Endemics; Cerrado; Gallery forest; Campos; Terra-firme; Forest; Restinga.
Ano: 1990 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061990000100005
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