Pusillanthus (Loranthaceae), a New Monotypic Genus from Venezuela

• Job Kuijt ^[1]
  1. [1] University of Victoria

     University of Victoria

     Canadá

     
• Localización: Novon: a journal for botanical nomenclature, ISSN 1055-3177, Vol. 18, Nº. 3, 2008, págs. 370-373
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A new monotypic genus of Loranthaceae, Pusillanthus Kuijt, is described and illustrated from Venezuela, based on Phthirusa trichodes Rizzini. It contrasts with other genera of small-flowered Neotropical Loranthaceae in combining an umbellate capitulum, tetramery, bisexual flowers with nearly sessile anthers, the absence of epicortical roots, and the presence of a conspicuous indument. The other genera have racemic or spike-like inflorescences (rarely solitary, axillary flowers). Species in the genus Struthanthus may represent the closest relatives, differing in their versatile anthers, 6-merous flowers, epicortical roots, and (except a single, unrelated Bolivian species) lack of indument; however, that genus is believed to be paraphyletic.