Publications (Per Ola Karis)

1996

• Karis, P. O. Phylogeny of the Asteroideae. Compositae-Systematics, Biology, Utilization, International Compositae Conference, Kew (in press).

1995

• Mishler, B. D., Albert, V. A., Chase, M. W, Karis, P. O., & Bremer, K. Character-state weighting for DNA restriction site data: asymmetry, ancestors, and the Asteraceae. Cladistics 10 (in press).
• Anderberg, A. A. & Karis, P. O. Psednotrichia, a genus of the tribe Senecioneae hitherto misplaced in the Astereae (Asteraceae). - Nordic Journal of Botany 15: 375--379.
• 1995. Karis, P. O. Cladistics of the subtribe Ambrosiinae (Asteraceae-Heliantheae). - Systematic Botany 20: 40-54.

1994

• Karis, P. O. & Ryding, O. Tribe Helenieae. In: Bremer, K., Asteraceae-cladistics and classification. Timber Press, Portland, Oregon, pp. 521-558.
• Karis, P. O. & Ryding, O. Tribe Heliantheae. In: Bremer, K., Asteraceae-cladistics and classification. Timber Press, Portland, Oregon, pp. 559-624.
• Karis, P. O. The fate of Sheareria S. Moore in Bremer's Asteraceae book. - Compositae Newsletter 24: 36-38.
• Bremer, K., Anderberg, A. A., Karis, P. O., & Lundberg, J. Tribe Eupatorieae. In: Bremer, K., Asteraceae-cladistics and classification. Timber Press, Portland, Oregon, pp. 625-680.

1993

• Karis, P. O. Morphological phylogenetics of the Asteraceae-Asteroideae, with notes on character evolution. - Plant Systematics and Evolution 186: 69-93.
• Karis, P. O. The Heliantheae sensu lato (Asteraceae), clades and classification. - Plant Systematics and Evolution 188: 139-195.
•   Karis, P. O., Anderberg, A. A., & Nordenstam, B. Resurrection and systematic position of Pentalepis F. Muell. (Asteraceae-Heliantheae). - Australian Systematic Botany 6: 149-153.

1992

• Karis, P. O. Upprop: leta efter smal vattenpest, Elodea nuttallii, i Sörmland! - Daphne 3(1): 18-20.
•   Karis, P. O. Hoplophyllum DC., the sistergroup to Eremothamnus O. Hoffm. (Asteraceae)? - Taxon 41: 193-198.
•   Karis, P. O., Källersjö, M., & Bremer, K. Phylogenetic analysis of the Cichorioideae (Asteraceae), with emphasis on the Mutisieae. - Annals of the Missouri Botanical Garden 79: 416-427.
• Bremer, K., Jansen, R. K., Karis, P. O., & Kim, K.-J. Current research on Asteraceae phylogeny and classification. - Compositae Newsletter 20/21: 1-3.
•   Bremer, K., Jansen, R. K., Karis, P. O., Källersjö, M., Keeley, S. C., Kim, K.-J., Michaels, H. J., Palmer, J. D., & Wallace, R. S. A review of the phylogeny and classification of the Asteraceae. - Nordic Journal of Botany 12: 141-148.
•   Anderberg, A. A., Karis, P. O., & El-Ghazaly, G. Cratystylis, an isolated genus of the Asteraceae-Cichorioideae. - Australian Systematic Botany 5: 81-94.

1990

• Bremer, K., Bremer, B., Karis, P. O., & Källersjö, M. Time for change in taxonomy. - Nature 343: 202.
•   Karis, P. O. Three new genera of the Asteraceae-Gnaphalieae from the Cape Region. - Botanical Journal of the Linnean Society 102: 23-36.
•   Karis, P. O. Systematics of the genus Metalasia (Asteraceae-Gnaphalieae). - Opera Botanica 99: 1-150.