303 
(2) Pp, Sargentii Dode. Cottonwoode An erect, straight tree, 20-25 m, tall j 
r more, DeBeH. 60-80 cme, young bark rusty in color, soon checking longi= : 
Oo 
tudinally, mature bark gray, fissured, the ridges even, the surface plane, 
lightly cross-hatched, thus formed into plates 10-12 inches long or more, 
the furrows anastomosing more or less; leaves 6-12 cm, long or more, broadly 
deltoid-ovate, attenuate at the apex, the point 1-2 cm, long, broadly sinuate 
at the base, the lobes rounded, sinuate-crenate, both surfaces green; 
petioles subecual to or shorter than the blade, strongly flattened in the 
upver half, often reddish; catkins short-stalked, glabrous, the staminate 
5-7 cm. long, the stamens 20 or more, with yellow anthers; pistillate catkins 
i 
glabrous, 8-10 cm. longs capsules glabrous, oblong-ovoid, 10-12 mn, long, 
the pedicels 4-5 mm, longe 
Alluvial bottoms of the Kootenai Re Bonners lerry, Eplinge 
