The genus Austrofestuca is a synonym of Poa with its type species, A.littoralis - now a synonym of Poa billardierei. The combination P. pubinervis is made to place this closely related species with P. billardierei. The other two species,... more
The genus Austrofestuca is a synonym of Poa with its type species, A.littoralis - now a synonym of Poa billardierei. The combination P. pubinervis is made to place this closely related species with P. billardierei. The other two species, A. eriopoda and A. hookeriana belong together in the genus Hookerochloa and a new combination is provided for Hookerochloa eriopoda.
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... Titre du document / Document title. PHYLOGENY OF POA (POACEAE) BASED ON trnT-trnF SEQUENCE DATA : MAJOR CLADES AND BASAL RELATIONSHIPS. Auteur(s) / Author(s). GILLESPIE Lynn J. ; ARCHAMBAULT Annie ; SORENG Robert J. ; ... Eremopoa. ;... more
... Titre du document / Document title. PHYLOGENY OF POA (POACEAE) BASED ON trnT-trnF SEQUENCE DATA : MAJOR CLADES AND BASAL RELATIONSHIPS. Auteur(s) / Author(s). GILLESPIE Lynn J. ; ARCHAMBAULT Annie ; SORENG Robert J. ; ... Eremopoa. ; Poa. ; Poinae. ...
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... MarõÂa SuaÂrez-Cervera, Elsa ArcalõÂs & Juan A. Seoane-Camba, Department of Botany, Faculty of Pharmacy, University of Barcelona, Av. Diagonal s/n, 08028 Barcelona, Spain. ... 15 309 Endadenium gossweileri (NEBr.) Leach Angola,... more
... MarõÂa SuaÂrez-Cervera, Elsa ArcalõÂs & Juan A. Seoane-Camba, Department of Botany, Faculty of Pharmacy, University of Barcelona, Av. Diagonal s/n, 08028 Barcelona, Spain. ... 15 309 Endadenium gossweileri (NEBr.) Leach Angola, Leach & Cannell 14593 (COI) ± Fig. 16 ...
Research Interests: Plant Biology and Grana
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ABSTRACT Phylogenetic relationships among Australian species of Poa and other subtribe Poinae genera were studied on the basis of plastid trnT–trnL–trnF and nuclear ribosomal ITS and ETS DNA sequence data. Molecular evidence is provided... more
ABSTRACT Phylogenetic relationships among Australian species of Poa and other subtribe Poinae genera were studied on the basis of plastid trnT–trnL–trnF and nuclear ribosomal ITS and ETS DNA sequence data. Molecular evidence is provided for two new monotypic endemic Australian genera, Sylvipoa and Saxipoa, on the basis of two species formerly included in Poa, P. queenslandica and P. saxicola, respectively. Both new genera resolved in a clade with three subtribe Poinae genera, the Australian genus Hookerochloa, the South American genus Nicoraepoa, and the arctic genus Arctagrostis. Sylvipoa and Nicoraepoa are sister taxa. Saxipoa resolved as sister to these plus Arctagrostis, but also shares DNA sequence characters with Hookerochloa, suggesting a possible hybrid origin. All other Australian Poa species studied resolved in a subclade within the P. subgenus Poa supersection Homalopoa clade, supporting their classification together in an expanded P. section Brizoides. Five New Zealand and one New Guinea species also resolved in this subclade, supporting their membership in this section. We postulate a minimum of two dispersal events into Australia, one for Poa and one for other Poinae genera, and a minimum of three into New Zealand and two into New Guinea for Poa.
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ABSTRACT Two species are removed from the genus Poa in Australia on the basis of morphology and DNA and placed in new genera. One is placed in Saxipoa Soreng, L. J. Gillespie & S. W. L. Jacobs - type: S. saxicola (R.Br.) Soreng,... more
ABSTRACT Two species are removed from the genus Poa in Australia on the basis of morphology and DNA and placed in new genera. One is placed in Saxipoa Soreng, L. J. Gillespie & S. W. L. Jacobs - type: S. saxicola (R.Br.) Soreng, L. J. Gillespie & S. W. L. Jacobs; and one is placed in Sylvipoa Soreng, L. J. Gillespie & S. W. L. Jacobs - type: S. queenslandica (C.E. Hubb.) Soreng, L. J. Gillespie & S. W. L. Jacobs. An infrageneric classification of Poa is proposed that places all 41 indigenous Australian species in P. subg. Poa supersect. Homalopoa sect. Brizoides. Thirty-three of these species, plus six species of New Zealand Poa, are placed in a new P. subsect. Australopoa Soreng, L. J. Gillespie & S. W. L. Jacobs. Two species are placed in P. subsect. Austrofestuca (Tzvelev) Soreng, L. J. Gillespie & S. W. L. Jacobs, one in P. subsect. Brizoides (Pilg. ex Potztal) Soreng, L. J. Gillespie & S. W. L. Jacobs, and one in P. subsect. Neuropoa (Clayton) Soreng, L. J. Gillespie & S. W. L. Jacobs.