1902] NORTH AMERICAN TREES 123 
marked by occasional large dark lenticels, puberulous at the 
ends, 4% to % in. in diameter; calyx prominent, with a broad 
shallow cavity and enlarged spreading and appressed lobes ; 
flesh thick, yellow, subacid ; nutlets 5, ridged on the back with 
narrow elevated ridges, pale brown, % in. long. 
A tree 25 to 30 feet in height with a trunk 14 or 15 in. in diameter cov- 
ered with thick dark brown bark deeply divided into narrow interrupted 
ridges broken on the surface into short thick plate-like scales, stout spread- 
ing and ascending branches forming a broad open irregular head, and thick 
slightly zigzag branchlets coated with hoary tomentum when they first appear, 
dark purple or reddish-brown and pubescent during their first summer, dark 
gray-brown and glabrous the following season, and armed with straight stout 
dull gray-brown spines usually about 1 % in. long. 
Flowers about the middle of April. Fruit ripens early in October. 
Sandhills west of Augusta, Georgia, and Aiken, South Carolina. 
Pe confounded with Crataegus flava of Aiton, Crataegus Ravenelit 
pray gas species in the form of the leaves, the size of the flowers, the 
weg anthers, and the size and character of the fruit. The oldest 
: | I have seen were collected near Aiken in 1880 by Henry 
es te, the name of that distinguished South Carolina botanist 
ees ngly be associated with this handsome thorn tree. 
oF rarely ee lacera, n. sp.—Leaves rhombic to broadly ovate 
reas oe acute at the apex, broadly cuneate and entire 
_ = Yase, divided above the middle into numerous narrow 
aL tate lobes, coarsely and often doubly serrate with straight 
CoE 2b pepe below as they unfold with thick hoary 
mand villose above; nearly fully grown when the flow- 
| Scattere “aaa pots below and covered above with short 
Upper than a ae at maturity yellow-green, darker on the 
wea une ‘ower surface, glabrous, thin but firm in tex- 
Shes 1% baad long and 1% in. wide, with slender yellow 
oe aaa primary veins only slightly impressed : 
ea. = eading shoots usually broadly ovate, often | 
med, very coarsely serrate, 3 to 4 in. long and- 
: slender, grooved, villose, ultimately glabrous or 
remy -wing-margined above, often red toward © 
| ae aa long ; Stipules linear, acuminate, villose, — 
om vigorous ‘shoots lunate, long-pointed, coarsely — 
