WALNUT FAMILY 
Ficoria glabra now includes Carya microcarpa and Carya 
porcina of Gray. In the species as now constituted the fruit 
varies greatly in form, being oval or globular as well as pyri- 
form. The husk is always thin, smooth, often obscurely 
winged, and divided into four unequal valves. The kernel at 
first is sweet to the taste, but finally bitter. 
The number of leaflets varies from five to seven. In the 
variety C. microcarpa the leaflets are five and the leaf asa 
whole is a small but faithful copy of that of the Shellbark. 
But other trees are found whose leaflets are oftener seven 
than five. 
The bark is firm, close, usually divided by small fissures; 
it rarely exfoliates, but when it does the plates are not more 
than five or six inches long. 
