@article {60,
	title = {A study of the relationship between Scarlet Oak (Quercus coccinea Muenchh.) and Hill Oak (Quercus ellipsoidalis E.J. Hill) in Michigan and nearby states},
	journal = {Journal of the Pennsylvania Academy of Science},
	volume = {51},
	year = {1977},
	month = {1977},
	pages = {47-50},
	abstract = {... The evidence indicates a continuum of character change between the two species from south to north. Data from the common gardens studies appear to support a genetic continuum from south to north. Hill Oak is considered as a northern small-fruited expression of Scarlet Oak.},
	author = {Overlease, W.R.}
}
