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Cladistic Relationships Of Aechmea (Bromeliaceae, Bromelioideae) And Allied Genera, A.P.G. De Faria, T. Wendt, Gregory K. Brown
Cladistic Relationships Of Aechmea (Bromeliaceae, Bromelioideae) And Allied Genera, A.P.G. De Faria, T. Wendt, Gregory K. Brown
Gregory K Brown
Aechmea (ca. 220 species) is the largest and most diverse genus in Bromelioideae (Bromeliaceae), and several dissimilar generic concepts and infrageneric classifications have been proposed, frequently involving other closely related Bromelioideae. A morphology-based phylogenetic analysis using parsimony was conducted with 86 taxa, including 52 Aechmea (7 of the 8 recognized subgenera represented) and 34 exemplars from 9 closely related genera as the ingroup. Two species of Cryptanthus were included as the outgroup. The main objectives were to assess the validity of the major infrageneric classification systems proposed for Aechmea and to elucidate the phylogenetic position of Aechmea and putatively related …
Examination Of Subfamilial Phylogeny In Bromeliaceae Using Comparative Sequencing Of The Plastid Locus Ndhf, R. G. Terry, Gregory K. Brown, R. G. Olmstead
Examination Of Subfamilial Phylogeny In Bromeliaceae Using Comparative Sequencing Of The Plastid Locus Ndhf, R. G. Terry, Gregory K. Brown, R. G. Olmstead
Gregory K Brown
Parsimony analysis of 31 sequences of the chloroplast locus ndhF was used to address questions of subfamilial phylogeny in Bromeliaceae. Results presented here are congruent with those from chloroplast DNA restriction site analysis in recognizing a clade containing Bromelioideae and Pitcairnioideae, and in resolving Tillandsioideae near the base of the family. Placements of several taxonomically difficult genera (e.g., Glomeropitcairnia and Navia) corroborate those of traditional treatments; however, these data suggest that Brocchinia (Pitcairnioideae) is the sister group to the remainder of Bromeliaceae. Further evidence for the paraphyly of Pitcairnioideae includes the resolution of Puya as the sister group to Bromelioideae. …