1918] SARGENT—CARYA 231 
Arkansas River in Woods. County and to Comanche County, 
Oklahoma, and in Texas to the valley of the Devil’s River and to 
Hardiman County. 
2. CARYA TEXANA C. DC.—In addition to the stations in Texas 
and Arkansas (see Trees and Shrubs 2:206) the bitter pecan has 
been found near Lake Charles in Calcasieu Parish, and near Laurel 
Hill, West Feliciana Parish, Louisiana, and near Natchez, Adams 
County, Mississippi. 
3. CARYA CORDIFORMIS Schn.—This is perhaps the most widely 
distributed although not the commonest of all the species of Carya, 
as it ranges from southern Maine to the valley of the St. Lawrence 
River near Montreal and to that of the Ottawa at Hull in the 
Province of Quebec, and westward to northeastern Nebraska and 
eastern Oklahoma, and southward to western Florida, northern 
Alabama, western Mississippi, Louisiana, and eastern Texas. In 
New England it appears to grow farther north than the other 
species, but in the valley of the St. Lawrence River in Quebec 
and Ontario it is associated with C. ovata. It grows on the shores 
of the Straits of Mackinac, Michigan, and in southeastern Minne- 
sota with C. ovata, but as it ranges much farther north than that 
species in Minnesota it must be considered the most northern rep- 
resentative of the genus. In the south Atlantic states from Vir- 
ginia to southern Georgia it is found from the coast up to altitudes 
of about 700 m. on the Appalachian Mountains. I have no record 
of its occurrence in Florida outside the valley of the Apalachicola 
River or in the coast region of the Gulf states. 
To persons who have not read books about trees C. cordiformis 
is generally known, at least in the southern states, as the pignut, 
and this name should be used for it rather than for C. glabra or 
C. ovalis and their varieties, which all have sweet and edible seeds. 
The first published account of C. cordiformis appeared in 1731 in 
Catessy’s Natural History of Carolina (1:38. pl. 38), where it is 
called ‘‘nux Juglans Carolinensis fructu minims putamiene laevi, 
the pignut.”” Caterssy describes the nuts “‘as not one-quarter part 
so big as those of the hickory, having both inner and outer shells 
very thin, so that they may easily be broken with one’s fingers. 
The kernels are sweet, but being small and covered with a very 
