@inbook {3834, title = {Major trends of evolution in the Poaceae and their possible significance}, booktitle = {Grasses and Grasslands. Systematics and Ecology}, year = {1982}, pages = {3-36}, publisher = {University of Oklahoma Press}, organization = {University of Oklahoma Press}, address = {Norman}, keywords = {ECOLOGY, EVOLUTION, Grasses, GRASSLANDS, POACEAE, SYSTEMATICS}, author = {Stebbins, G. L.}, editor = {Estes J.R. and Tyrl, R. J. and Brunken, J. N.} } @book {2190, title = {Grasses and Grasslands}, year = {1982}, publisher = {Norman}, organization = {Norman}, address = {Oklahoma}, keywords = {CR REF, Grasses, GRASSLANDS}, author = {Estes, J. R. and Tyrl, R. J. and Brunken, J. N.} } @article {1706, title = {A systematic study of Pennisetum sect. Pennisetum (Gramineae)}, journal = {American Journal of Botany}, volume = {64}, year = {1977}, pages = {161-176}, keywords = {GRAMINEAE, PENNISETUM}, author = {Brunken, J. N.} } @article {1707, title = {Morphometric variation and the classification of Pennisetum section Brevivalvula (Gramineae) in tropical Africa}, journal = {Botanical Journal of the Linnean Society}, volume = {79}, year = {1979}, pages = {51-64}, keywords = {AFRICA, CLASSIFICATION, GRAMINEAE, PENNISETUM}, author = {Brunken, J. N.} }