138 THE FOREST TREE CULTURIST. 
not larger than a small pea, in others an inch in diameter ; 
some are of excellent flavor, others dry and insipid; red 
is the most common color, but there are a number of 
species with yellow fiuit. | 
All of the species produce more or less thorns, and 
make excellent hedges, but are exceedingly liable to be 
attacked by the apple-tree borer. Its seeds ripen in au- 
tumn, and should be sown at that time, for if they once 
get thoroughly dry they will not grow ; but they will often 
remain in the ground two years before they germinate. 
The following are probably the best for cultivation: 
Craracus corpata ( Washington Thorn). — Leaves 
broadly ovate; flowers small; fruit not laiger than peas; 
bright red; tree fifteen to thirty feet high. Virginia and 
Kentucky. 
Crarzeus TomeNnTosA (Pear Thorn).— Leaves large, 
oval, sharply toothed; flowers large ; fruit crimson, some- 
times an inch in diameter, sprightly flavor, edible; com- 
mon in the Northern and Western States. There are sey- 
eral varieties of this species, some of which have yellow 
or yellowish-white fruit, with a very agreeable flavor. 
CrRaTHGuUS CRUS-GALLI (Cockspur Thorn).—Leaves deep 
green, shining, very thick; fruit bright red, small; one 
of the handsomest native species; tree fifteen to twenty- 
five feet high. 
The double-flowering varieties are usually budded on 
some one of our native kinds. 
Drospyrus Vireintana. (Persimmon.) 
Leaves ovate oblong, nearly or quite smooth; flowers 
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