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Cluster analysis and ordination by principal component analysis (PCA) were used to study phenetic relationships among the Argentine species of Alstroemeriaceae and to point out the characters that contribute to the differentiation between Alstroemeria L. and Bomarea Mirb. A total of 123 specimens (analysis 1) and 15 taxa (analysis 2) were examined and 46 morphological characters were used: 17 quantitative and 29 qualitative ones. The results point out the clear phenetic distinction between Alstroemeria and Bomarea species and also among species within both genera. A dendrogram produced by UPGMA cluster analysis on standardized characters and the PCA analysis show the differentiation of Bomarea species into two groups: B1 includes Bomarea stans Kränzl., B. boliviensis Baker (subgen. Sphaerine) and B. edulis (Tuss.) Herb, (subgen. Bomarea) respectively, and B2 with B. macrocephala Pax. (subgen. Wichuraea). For the Alstroemeria species, four groups are recognized: A1 is formed by Alstroemeria apertiflora Baker, A. bakeri Pax and A. isabellana Herb.; A2 comprises two subgroups, A2a: A. psittacina Lehm., A. presliana Herb, and A. aurea Graham and A2b with A. pygmaea Herb, and A. patagonica Phil, (with A. patagonica Phil. f. biflora Ravenna). A. pseudospathulata Ehr. Bayer (A3) and A. andina Phil, subsp. venustula (Phil.) Ehr. Bayer (A4) have isolated positions.


Documento: Artículo
Título:Phenetic relationships among Argentine species of Alstroemeriaceae
Autor:Sanso, A.M.
Filiación:Inst. de Botánica Darwinion, Casilla de Correo 22, 1642 San Isidro, Buenos Aires, Argentina
Dpto. de Ciencias Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428, Núñez, Cap. Fed., Argentina
Palabras clave:Alstroemeria; Alstroemeriaceae; Bomarea; Phenetic relationships
Página de inicio:131
Página de fin:145
Título revista:Darwiniana
Título revista abreviado:Darwiniana


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---------- APA ----------
(1997) . Phenetic relationships among Argentine species of Alstroemeriaceae . Darwiniana, 35, 131-145.
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---------- CHICAGO ----------
Sanso, A.M. "Phenetic relationships among Argentine species of Alstroemeriaceae " . Darwiniana 35 (1997) : 131-145.
Recuperado de [ ]
---------- MLA ----------
Sanso, A.M. "Phenetic relationships among Argentine species of Alstroemeriaceae " . Darwiniana, vol. 35, 1997, pp. 131-145.
Recuperado de [ ]
---------- VANCOUVER ----------
Sanso, A.M. Phenetic relationships among Argentine species of Alstroemeriaceae . Darwiniana. 1997;35:131-145.
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