New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay
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| Format: | Artículo científico |
| Language: | en |
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Instituto de Botánica Darwinion
2005
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| _version_ | 1876480751690579968 |
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| author | Janice G. Saunders |
| author_facet | Janice G. Saunders |
| contents | New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay Janice G. Saunders Biología Paraguay Waltheria Argentina Venezuela Hermannieae Waltheria carmensarae, a homostylous species from northeastern Argentina, southeastern Paraguay,and central Venezuela, and W. procumbens, a distylous species from northeastern Paraguay, arenewly 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 raisedsucculent midribs, petals adnate to the stamen tube for more than 0.8 mm in length, and a capsule withhardened 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 and distylous distributionsin Paraguay, Venezuela, and Mexico, or exclusively homostylous in Argentina. Pollen morphology isfirst described for W. carmensarae and Kohlers description for W. prostrata is repeated for the newspecies W. procumbens. A regional key is included for all Argentinian and all Paraguayan species ofWaltheria. Waltheria operculata (sect. Stegowaltheria) is newly reported for Paraguay and W. albicans(sect. Waltheria) first appears with specimens cited for Paraguay. 2005 artículo científico 0011-6793 https://www.redalyc.org/articulo.oa?id=66943413 https://www.redalyc.org/journal/669/66943413/ https://www.redalyc.org/journal/669/66943413/html/ https://www.redalyc.org/journal/669/66943413/66943413.epub https://www.redalyc.org/journal/669/66943413/movil en http://www.redalyc.org/revista.oa?id=669 Darwiniana application/pdf Instituto de Botánica Darwinion Darwiniana (Argentina) Num.1-4 Vol.43 |
| format | Artículo científico |
| id | redalyc_66943413 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Instituto de Botánica Darwinion |
| spellingShingle | New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay Janice G. Saunders Biología Paraguay Waltheria Argentina Venezuela Hermannieae New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay Janice G. Saunders Biología Paraguay Waltheria Argentina Venezuela Hermannieae Waltheria carmensarae, a homostylous species from northeastern Argentina, southeastern Paraguay,and central Venezuela, and W. procumbens, a distylous species from northeastern Paraguay, arenewly 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 raisedsucculent midribs, petals adnate to the stamen tube for more than 0.8 mm in length, and a capsule withhardened 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 and distylous distributionsin Paraguay, Venezuela, and Mexico, or exclusively homostylous in Argentina. Pollen morphology isfirst described for W. carmensarae and Kohlers description for W. prostrata is repeated for the newspecies W. procumbens. A regional key is included for all Argentinian and all Paraguayan species ofWaltheria. Waltheria operculata (sect. Stegowaltheria) is newly reported for Paraguay and W. albicans(sect. Waltheria) first appears with specimens cited for Paraguay. 2005 artículo científico 0011-6793 https://www.redalyc.org/articulo.oa?id=66943413 https://www.redalyc.org/journal/669/66943413/ https://www.redalyc.org/journal/669/66943413/html/ https://www.redalyc.org/journal/669/66943413/66943413.epub https://www.redalyc.org/journal/669/66943413/movil en http://www.redalyc.org/revista.oa?id=669 Darwiniana application/pdf Instituto de Botánica Darwinion Darwiniana (Argentina) Num.1-4 Vol.43 |
| title | New species of Waltheria (Hermannieae, Byttnerioideae, Malvaceae) from Paraguay, Argentina, and Venezuela, and two new records for Paraguay |
| topic | Biología Paraguay Waltheria Argentina Venezuela Hermannieae |
| url | https://www.redalyc.org/articulo.oa?id=66943413 https://www.redalyc.org/journal/669/66943413/ https://www.redalyc.org/journal/669/66943413/html/ https://www.redalyc.org/journal/669/66943413/66943413.epub https://www.redalyc.org/journal/669/66943413/movil |