9 
RIVER HAWTHORN. 
CRATiEGUS rivularis, foliis ovatis vel obovatis , obtusis 
acutisve inciso-serratis basi atienuatis brevi-petiolatis ; co- 
rymbis multifloris glabris , floribus parvulis, calycis lad - 
nils obtusis brevissimis eglandulosis ; fructibus nigris . — 
Nutt, in Torrey and Gray, Flor. Amer., vol. 1. p. 364. 
/3. cuneata, spinis brevibus, foliis cuneatis obtusis , indsis . 
Along the shady borders of the rivulets of the Rocky 
Mountains we observed this species blended with the 
former, becoming equally a tree and producing the same 
kind of pleasant dark fruit. It was also observed by 
Douglas in the interior of Oregon, where we likewise 
met with it. It is, in all probability, the smoother, sup- 
posed variety of C, punctata , mentioned by Hooker in 
his Flora. 
The branches are reddish-brown, the leaves nearly as 
entire as those of the Apple tree, except in (3. where 
they are slightly lobed; beneath very smooth, slightly 
pubescent above, acute and rather sharply serrate, with 
long spines. The peduncles and calyx perfectly smooth, 
the segments of the latter m6re broad, obtuse dentures. 
The flowers are white and smaller than in the preceding. 
The berries are also black, and possess nearly the same 
sweet and rather insipid taste of the Common Haw, ( C . 
oxyacantha.) 
VOL. II. 
2 
