-
By: Valdespino, Iván A.Type: ArticleIn: PhytoKeysVolume: 91Series:Issue:Date: 2017Page Range: 13-38Publication Info: Pensoft Publishers 2017Subjects: Amazon Basin Cuenca del Amazonas Escudo guyanés Guiana Highlands monomórficas Monomorphic New World Nuevo Mundo subgenera subgéneros tepuis tepuyes
-
By: Valdespino, Iván A.Type: ArticleIn: PhytoKeysVolume: 159Series:Issue:Date: 2020Page Range: 71--113Publication Info: Pensoft Publishers 2020Subjects: Escudo guyanés esporófilos estróbilos Guiana Highlands heteromórficas heteromorphic New World non-articulate stems Nuevo Mundo South America sporophylls strobili Sudamérica tallos no articulados