Trees, Shrubs and Vines 
shaped base, thickish when old, fragrant when bruised. FLOWER: 
p., light yellow, small (petals and stamens 5), crowded in clusters 
before the leaves; April, May ; 2°-6° high. (Pl. VII.) 
141. Shrubby Cinque-foil. (Potentilla fruticosa.) 
LEAF: pinnate, alternate; leaflets, 5-7, entire, about 1’ long, 
lance-oblong, silky (especially beneath), crowded. FLOWER: p., 
yellow (petals 5, stamens many), abundant, at ends of branchlets ; 
June-September ; damp places; 2°-4° high. (Pl. VIII.) 
142. Lapland Rose-bay. (Rhododendron lapponicum.) 
LEAF: ¥%’, simple, alternate, entire, elliptical, apex blunt, ever- 
green, dotted with rusty scales. FLOWER: m., purplish (corolla 
broad bell-shaped, 5-lobed, 5-10 stamens), about 2%’ across, few- 
clustered, terminal; July. Alpine tops of mountains in Maine, 
New Hampshire, and New York; very low shrub. 
143. Rhododendron. (R. catawbiense.) 
LEAF: 3-5’, simple, alternate, entire, oval to oblong, dase and 
apex rounded, lighter beneath, evergreen. FLOWER: m,, lilac- 
purple (corolla broad bell-shaped, 5-lobed, 10 stamens), in ter- 
minal clusters; June. High mountains of Virginia ; 3°-6° high. 
144. Broom-crowberry. (Corema conradii.) 
LEAF: \’, simple, alternate, entire, arrow, scattered or 
crowded ; evergreen. FLOWER: with nocorolla nor calyx: 3-4 
long purple stamens; in terminal ‘‘ heads,” each 10-15-blos- 
somed ; March, April. Maine to New Jersey, along coast; low 
shrub. 
145. Phyllodoce. (P. taxifolia.) 
LEAF: ¥%’, simple, alternate, entire, linear, apex blunt, rough- 
edged. FLowWER: m., purplish (corolla long-urn-shaped, 5- 
toothed, 10 stamens), single or few-clustered at top of branch; 
July. Alpine tops of mountains in Maine and New Hampshire ; 
fow evergreen shrub. 
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