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Aristolochia comprises about 450 species, occurring mainly in tropical regions. Here, we record for the first time Aristolochia wankeana in Brazil, specifically in two municipalities in the state of Amazonas (Presidente Figueiredo and Rio Preto da Eva).
Previously, this species had only been recorded in Guyana and French Guiana. We provide the spec...
Este estudo fornece informações sobre germinação de sementes e morfologia de plântulas de Philodendron Schott, da Amazônia Central. Testes de germinação foram realizados com 4x50 sementes em papel de germinação a 25°C com 12 horas de luz ou no escuro. As infrutescências de Philodendron eram compostas por bagas com ca. 7–71 sementes/fruto. As sement...
Philodendron josephii sp. nov. is described from terra firme tropical humid forest in Amazonas state, Brazil. This new species is similar in its leaf morphology to two other Amazonian species, P. maximum and P. megalophyllum, but differs by characters of the prophyll, petiole, flagelliform branches and ovary. The description is accompanied by illus...
Philodendron rio-pretense C.A.S.Bat. & M.L.Soares belongs to the subgenus Philodendron. This newly described species is similar to P. carinatum and P. wurdackii but differs from these species primarily due to a combination of the following characteristics: persistence of the prophyll (twisted); stipe short, locules 4 – 7, ovules 1 – 2 and funiculus...