470 VACCINIACEAE 
obtuse, 3 to 14 in. long, densely covered with scurfy scales, at least when 
young. Upper leaves reduced to floral bracts. Bogs and swamps through- 
out most of our area. Also on high mountains. April-June. 
18 XOLISMA, Raf. 
A bushy tree, found in low grounds, with alternate leaves and terminal 
clusters of small globe-formed flowers. Calyx 4- or 5-parted; stamens 8 
to 10; capsule 4- or 5-celled, globose. 
X. ligustrina, (L.) Britton. (Fig. 6, pl. 118.) Priver ANDROMEDA. 
(Andromeda ligustrina, Muhl.) Shrub, 3 to 15 ft. high. Leaves oblong, 
oval or pear-shaped, with fine serrations at margins, tapering at each 
end. Corolla globular or nearly so. Swamps and wet soil, New England, 
New York and southward. May-July. 
19. CALLUNA, Salisb. 
A low shrub, naturalized from Europe. Evergreen, branching; our 
species with minute overlapping leaves and with long slender clusters of 
bell-shaped flowers. Calyx of 4 sepals; corolla with 4 lobes; stamens 8; 
capsule 8-angled, 4-celled. 
C. vulgaris, (L.) Hull. (Fig. 4 pl. 115.) Heatruer. Found occa- 
sionally in sandy or rocky soil. Flowers pink. July-Sept. 
20. OXYDENDRON, DC. 
Tree, 15 to 60 ft. high, with alternate, deciduous leaves which are 
oblong or broad lance-shaped, sharp pointed at apex and tapering at base, 
sour to the taste. Flowers numerous, ovoid, white, in long one-sided 
slender clusters. Stamens 10. Calyx of 5 nearly distinct sepals; corolla 
5-toothed; capsule pyramidal, 5-celled, 5-valved. 
O. arboreum, (L.) DC. Sour Woop. A tree found in rich woods of 
Penna., and further south. June-July. 
Famity V.—VACCINIACEAE. HucKkLEeBerry FAMILY 
Shrubs, with alternate, undivided leaves and small bell- urn- or 
egg-shaped flowers. The calyx is adherent to the ovary through 
the whole extent of the latter, the 5 (rarely 4) sepals expanding 
above the ovary. The petals are united to form an undivided 
corolla though in exceptional cases the lobes are somewhat deeply 
cleft, as in the oxycoccus (cranberry). Stamens twice as many 
as the petals, arising from the base of the pistil or from the corolla. 
Fruit a berry. 
Corolla bell-cylindric or egg-shaped. 
Berries not white. 
Seeds; LO o's. / eh te eatin! uh ee 
Seeds small, numerous . . . . . . Vaccinium 
Berries - wittte.. oo. a. uj ecy ee deve oes wk oe 
Corolla deeply cleft, with recurved lobes . . . Oxycoccus 
