114 TREES OF THE NORTHERN UNITED STATES 
1. VibGrnum Opulus, L. (CRANBERRY-TREE.) Leaves palmately 
veined and strongly 3-lobed, broadly wedge-shaped or truncate at 
base, the spreading lobes mostly toothed 
on the sides and entire in the notches; 
petiole with 2 glands at the apex. Fruit 
in peduncled clusters, light red and quite 
sour (whence the name ‘‘Cranberry-tree”). 
A nearly smooth, small tree or shrub, 4 to 
12 ft. high; wild along streams, and culti- 
vated under the name of Snowball-tree or 
Guelder Rose. In this variety the flowers 
have all become sterile and enlarged. Vi- 
pbirnum acerifolium (ARROW-WooD) has 
also lobed leaves, and is much more com- 
mon. This species never forms a tree, and 
v. épulus. has dark-colored berries. 
2. Vibirnum dentatum, L. (ARROW- 
woop.) Leaves, pale green, broadly ovate, 
somewhat heart-shaped at base, coarsely and 
sharply dentated, strongly veined and of- 
ten with hairy tufts in the axils; petioles 
rather long and slender. Fruit 14 in. long, 
in peduncled clusters, blue or purple; a cross- 
section of the stone between kidney- and 
horseshoe-shaped. V. dentatum. 
A shrub or small tree, 5 to 15 ft. high, 
with ash-colored bark ; in wet places. 
3. VibGrnum Lentago, L. (SWEET 
VIBURNUM OR SHEEP-BERRY.) Leaves 
broad, ovate, long-pointed, 2 to 3 in. long, 
closely and sharply serrated; petioles 
long and with narrow, curled margins; 
entire plant smooth. Fruit in sessile 
clusters of 3 to 5 rays, oval, large, 14 in. 
long, blue-black, edible, sweet; ripe in 
autumn. A small tree, 10 to 30 ft. high; 
found wild throughout, in woods and 
along streams. 
2 V. Lentago. 
4, Vibtrnum prunifolium, L. (BLack z 
Haw.) Leaves oval, obtuse or slightly V. prunifolium, 
pointed, 1 to 2 in. long, finely and sharply serrated. Blooming early. 
