Obese, a new mutation in the house mouse.

نویسندگان

  • A M Ingalls
  • M M Dickie
  • G D Snell
چکیده

er's 1716 description of a spontaneous variety cross in Zea Mays. Cotton Mather's is still our earliest authentic description of plant hybridization. In spite of the popular names for the oaks used by Lawson, however, there is little doubt but that he was really describing the actual results of introgression, although he may well have been unaware of the fact. Unfortunately, when we translate Spanish oak and red oak into taxonomic language we run into a bit of confused synonomy. The writer is indebted to Prof. John M. Fogg, Jr., for the translation. Spanish oak is taken to be Quercus falcata, Michx. This is a southern coastal plain species. The red oak is Q. rubra L., a species which is widely distributed in the southern Appalachians and which extends into the coastal plain. There are numerous intermediate forms which supposedly are the bastard Spanish oaks of Lawson. Indeed the relationship of Q. falcata and Q. rubra are such that Wm. Trelease in The American Oaks (1924) considers them a single species and reduces falcata to a form of rubra. It is highly desirable that we discover exactly what the eighteenth century American Colonials meant when they called a plant a bastard.

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عنوان ژورنال:
  • The Journal of heredity

دوره 41 12  شماره 

صفحات  -

تاریخ انتشار 1950