116 EMPETRACEAE, 
5. Low or prostrate. B. microphylla. 
Moderately high. B. japonica. 
PACHYSANDRA. 
More or less evergreen softwooded perennials with alter- 
nate relatively large wing-petioled toothed leaves clustered to- 
ward the ends of the short erect shoots; small white or purplish 
monoecious apetalous spiked flowers; and small 3-lobed capsules. 
Leaves coarsely crenate: flowers at top. P. terminalis. 
Leaves crenately lobed: flowers at base. P. procumbens. 
Family EMPETRACEAE. Crowberry Family. 
A small family of low evergreens, chiefly in cold regions. 
EMPETRUM. Crowberry. 
Low matted evergreen shrubs with slender twigs; small’ 
raised crescent-shaped leaf-scars with I bundle-trace, usually 
in whorls of 3; no stipule-scars; small round sessile solitary 
buds with few scales; small narrow crowded entire leaves; in- 
conspicuous apetalous polygamous flowers; and relatively large 
berry-like fruits. 
1. Leaves scarcely reflexed: twigs tomentose. 2. 
Lower leaves reflexed: twigs glandular or glabrate. E. nigrum. 
2. Leaves rather spreading: fruit opaque. E. atropurpurum. 
Leaves ascending: fruit translucent. ° E. Eaimesii. 
CorEMA. Broom Crowberry. 
Evergreen low shrubs with slender fluted twigs; minute 
continuous pith; alternate elevated crescent-shaped minute leaf- 
scars with a single bundle-trace; no stipule-scars; small globose 
sessile buds with several exposed scales; minute oblong nearly 
sessile blunt green leaves; small apetalous polygamous flowers 
clustered at ends of the branches; and several-seeded small dry 
drupes. 
Leaves minutely serrulate, grooved on both faces. C. Conradii. 
Family ANACARDIACEAE. Sumach Family. 
A small family, chiefly of warm regions, yielding mangoes, 
cashew apples and cashew nuts, pistacio nuts, and the lacquer 
