170 SILVA OF NORTH AMERICA. ROSACEZ. 
number, and are light-colored, about a quarter of an inch long, and rounded and ridged on the back, 
with a broad low ridge. 
Crategus aprica inhabits dry woods in the foothill region of the southern Appalachian Mountains, 
where it is common from southwestern Virginia through western North Carolina to eastern Tennessee, 
northern Georgia, and Alabama, growing usually at elevations between fifteen hundred feet and thirty- 
five hundred feet above the sea-level. 
Long confounded with Crategus flava of Aiton, its true characters were first made known by Mr. 
C. D. Beadle of the Biltmore herbarium. Since 1876 Crategus aprica has inhabited the Arnold 
Arboretum, where it is perfectly hardy and produces its flowers and fruit in the greatest abundance.’ 
1 In the Arnold Arboretum this tree was raised from seeds given _the flava group which has proved hardy in the northern states, 
to me by Dr. Asa Gray under the name of Crategus uniflora, and Crategus aprica is particularly beautiful in the Arboretum late in 
without any indication of its origin. One of the most distinct and October and in early November, when the long branches are loaded 
interesting species in the collection and the only representative of with their abundant fruits, and the leaves turn to a deep purple color. 
EXPLANATION OF THE PLATE. 
Pirate DCXCVIII. Cratamaus APRICA. 
. A flowering branch, natural size. 
. Vertical section of a flower, enlarged. 
. A fruiting branch, natural size. 
. Vertical section of a fruit, natural size. 
. Cross section of a fruit showing the nutlets, natural size. 
. A nutlet, side view, enlarged. 
. A nutlet, rear view, enlarged. 
. A nutlet, front view, enlarged. 
OoON Do FP WD 
. A winter branchlet, natural size. 
