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	Provedor de dados Naturalis (2) Autor Maas, P.J.M. (2) Struwe, L. (2) Kinkade, M.P. (1) Lepis, K.B. (1) Palavra-chave Gentianaceae (2) Helieae (2) Neotropics (2) Floristics (1) Morphology (1) New species (1) New taxa (1) Sierra Baeta (1) South America (1) Systematics (1) Tachia (1) Taxonomy (1) Mais... Tipo do documento Article / Letter to the editor (2) Ano 2011 (1) 2005 (1) País Netherlands (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Two new Brazilian species of Tachia (Gentianaceae: Helieae) Naturalis Struwe, L.; Kinkade, M.P.; Maas, P.J.M.. Two new species of Tachia (Gentianaceae: Helieae) are described from Brazil. They share the unusual characteristic of quadrangular, winged stems, formerly only known from Tachia longipes in Suriname. They differ from this species in their larger, winged, keeled, and long-acuminate calyx lobes. Tachia lancisepala, spec. nov., is only known from one collection from the State of Rondônia in Brazil, and has unusually large and broadly funnelshaped corollas and ovate leaves with winged petioles. Tachia siwertii, spec. nov., has been found in three separate areas in southern Amazonas and Pará (Brazil) and is characterized by more elliptic leaves, unwinged petioles, and a narrower corolla than T. lancisepala. Tipo: Article / Letter to the editor Palavras-chave: Gentianaceae; Helieae; Tachia; Neotropics; Systematics; Taxonomy; New species. Ano: 2005 URL: http://www.repository.naturalis.nl/record/524805 A new species of Sipapoantha (Gentianaceae: Helieae) from northern Brazil Naturalis Lepis, K.B.; Maas, P.J.M.; Struwe, L.. A new species from Gentianaceae (tribe Helieae) is described from northern Brazil. Sipapoantha obtusisepala sp. nov. is distinct from the previously single member of the genus, Sipapoantha ostrina, by having a woody and branched habit, sessile and ovate leaves with an acute apex, and a smaller calyx with circular lobes. Sipapoantha obtusisepala is based on somewhat incomplete material and tentatively placed in Sipapoantha based on the presence of key generic characters such as coriaceous leaves with strongly revolute margins and blue corollas. It has only been recorded from one locality in the Brazilian-Guyana border area in the state of Roraima. Tipo: Article / Letter to the editor Palavras-chave: Floristics; Gentianaceae; Helieae; Morphology; Neotropics; New taxa; Sierra Baeta; South America. Ano: 2011 URL: http://www.repository.naturalis.nl/record/525073 Registros recuperados: 2 Primeira ... 1 ... Última

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