EUPHORBIACEZ II9 
resembling the last, but with broader leaves, is reported 
from Canton Ziirich. £. stricta, L., resembling Platy- 
phyllos in its tuberculated capsule, but umbel only 3- 
instead of 4-5 rayed, occurs by wood-sides; &. verru- 
cosa, Lam., with numerous perennial stems, and yellow 
elliptic bracts tinged with red, on dry hills; E. palus- 
tris, L.; stem 3-6 feet, lateral barren branches very long, 
exceeding the umbel, in marshes; £. dulcis, L., with 
triangular-oval bracts, leaves denticulate towards the 
tip, and tuberculated capsule, in woods; and &£. Gerar- 
diana, Jacq., with linear-lanceolate glaucous leaves, 
umbel with very numerous rays, and smooth capsule, in 
stony places. 
2. MERCURIALIS, Tourn. 
Flowers small, usually dicecious ; sepals 3; stamens 8— 
20; ovary 2-celled; leaves opposite, stipulate; not milky. 
Both the English species of Dog’s-Mercury, IZ. perennis, 
L., perennial, flowering in the spring; and aznua, L., 
annual, flowering in the autumn, occur also in Swit- 
zerland. 
3. Buxus, Tourn. 
Flowers moncecious; sepals 4-12; stamens 4; ovary 
3-celled ; seed-vessel a woody 3-celled capsule; an ever- 
green shrub with opposite leaves; not milky. 
B. sempervirens, L., Box; hills on a calcareous soil ; 
Jura, Pyrenees. 
Order LXXIII.—URTICACE. 
Flowers usually unisexual, small, green; calyx 3-8- 
cleft ; stamens 3-8 ; ovary usually I-celled; style I ; seed- 
