. Biochemical systematics. Biochemical variation; Botany. TAXONOMIC PRINCIPLES 19. Miocene Oligocene Fig. 2-2. Schematic representation of the suggested origin and evolution of present day Hymenopappus species (Turner, 1956). various taxa, as determined from degrees of specialization, are in- dicated, the factor of time for the assumed branching is not indicated. The diagram indicates that D. torulosa is morphologically the most speciahzed, or advanced, and that D. chrysantha is the most primitive. In terms of position, as determined from the morphology of the characters selected, D. torulosa
. Biochemical systematics. Biochemical variation; Botany. TAXONOMIC PRINCIPLES 19. Miocene Oligocene Fig. 2-2. Schematic representation of the suggested origin and evolution of present day Hymenopappus species (Turner, 1956). various taxa, as determined from degrees of specialization, are in- dicated, the factor of time for the assumed branching is not indicated. The diagram indicates that D. torulosa is morphologically the most speciahzed, or advanced, and that D. chrysantha is the most primitive. In terms of position, as determined from the morphology of the characters selected, D. torulosa is closer to D. scandens than it. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alston, Ralph E; Turner, B. L. (Billie Lee), 1925-. Englewood Cliffs, N. J. , Prentice-Hall
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany
