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New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae¹) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay Darwiniana
Saunders,Janice G..
Waltheria carmensarae, a homostylous species from northeastern Argentina, southeastern Paraguay, and central Venezuela, and W. procumbens, a distylous species from northeastern Paraguay, are newly described and illustrated. Both species share along with some other species of Waltheria sect. Waltheria and all of sect. Stegowaltheria an elongate-plumose stigma, adaxial petals with raised succulent midribs, petals adnate to the stamen tube for more than 0.8 mm in length, and a capsule with hardened endocarp only at the apex. Waltheria carmensarae resembles the distylous species W. preslii, endemic to coastal Guerrero and Oaxaca, Mexico, whereas W. procumbens appears to be close to W. albicans, primarily from Brazil where distylous, with scattered homostylous...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waltheria; Hermannieae; Byttnerioideae; Malvaceae s.l.; Argentina; Paraguay; Venezuela; Pollen morphology.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932005000100013
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Resurrection of the Maui Endemic Waltheria Pyrolifolia (Sterculiaceae, Hermannieae) Darwiniana
Saunders,Janice G..
Old and new morphological characters confirm that Waltheria pyrolifolia is abundantly distinct from W. indica s.l., not its synonym, nor teratological material of it. The first illustrations of W. pyrolifolia are presented. It is here IUCN global category assessed as critically endangered, tagged possibly extinct. The earliest lectotypifications of W. indica and W. americana, realized by Gillis in 1974, are clarified.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Maui; Taxonomy; Waltheria; Wilkes Expedition.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932011000100007
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