Trees, Shrubs and Vines 

single and full-double varieties, the latter somewhat like small 
fullroses; May; branches bright green from March on ; another 
form has foliage white-variegated ; 2°-5°. (PI. III.) 
54. Buffalo or Missouri Currant. (Ribes aureum.) 
LEAF: 2’, simple, alternate, 3-lobed and _ coarse-toothed, 
roundish. FLOWER: p. bright yellow, spicy-fragrant (petals 
and stamens 5, styles 2 or I), in small racemes bearing leafy 
bracts; early spring; berries blackish, tasteless. Western 
States. CPi. Ln) 
55. St. John’s-wort. (Hypericum moserianum.) 
LEAF: I’ or more, simple, opposite, entire, with translucent 
dots. FLOWER: p. yellow, /arge, 2' or more across (petals 5, 
many stamens), abundant, low shrub. 
56. Siberian Pea-tree. (Caragana arborescens.) 
LEAF: even-pinnate ; leaflets, 8-16, 1’ long, entire, elliptical, 
somewhat hairy, prickly-pointed. FLOWER: yellow, pea-shaped, 
in umbels; May; 6°-12°. Siberia; slightly arboreal. (Pl. III.) 
57. Bladder-senna. (Colutea arborescens.) 
LeaF: odd-pinnate ; leaflets, about 11, 1’, entire, oval, emargi- 
nate, dull green. FLOWER: yellow, pea-shaped, 3-6-clustered, 
throughout summer; of arboreal figure. Europe. (Pl. III.) 
58. Holly-leaved Barberry. (Mahonia aquifolium.) 
LEAF: pinnate, alternate ; leaflets, 5-9, 2’, spiny-toothed, oval 
or long-ovate, very glossy. FLOWER: p. yellow (petals 6, I sta- 
men 7x front of each petal, their anthers with hinged valves at 
top like trap-door, I pistil), in racemes ; spring, berries black or 
blue with bloom; 2°. Oregon. (Pl. IV.) 
59. European Elder. (Sambucus nigra.) 
LeraF : odd-pinnate ; leaflets, mostly 5, 1'-3', serrate, long-ovate, 
long-pointed. FLOWER: m. yellowish-white, fragrant (corolla 
394 
