Studies into Abstract Properties of Individuals. VII. Emergence in Hesperostipa comata and Three Species of Achnatherum (Poaceae)

Emergence is examined in populations of Hesperostipa comata, and this grass is compared to individuals, populations, and three additional species of Achnatherum. results demonstrate that the strongest degrees of emergence are expressed at the levels of individuals, species, and groups of species, with the strongest of all being seen when H. comata is compared with the trio of Achnatherum species; populations express the least emergence. This reflects evolutionary differentiation as expressed through the ontogenetic events that led to the formation of spikelets.