eth 
2. S- sitchensis Roem. . > Shrubelike, or less commonly a small 
tree 2-4 m. tall, stems trailing and reclining when occurring in openings. 
in the woods, ascending in burns and open places, bark olivaceous, shining, | 
marked by a few transverse lenticels, leaf scars rather prominent on younger | 
branchlets, which are thinly glabrous; buds resinous throughout, the inner __ 
scales somewhat hirsute, about 1 cm. long; stipules, at least on vigorous 
shoots, foliaceous and lacerate like a coxcomb; leaves 9-ll=foliolate, in 
whorl~1ike clusters at the ends of branches, 1.5-2 dom. long, oval or ovate 
in outline; leaflets oblong, 4-6 cm. long, usually 4-4.5 times longer than ¥ 
broad, acute at both ends, the margins finely toothed nearly to the base, the | 
teeth 40 or more, acute, both surfaces glabrous, the lower paler, scare . 
@laucous; tim SS 2 iialanemaats 10-12-0om. ay 
broad, the branches and pedicels thinly hirsute; calyx-lobeg triangular, 1m. % 
long, hairy within, obscure in fruit, the petals white, rotund, 3-4 mm. in 
diameter, reflexed, the hypanthium broadly obconic, hairy, especially at the 
base, stamens 5 mm. long; fruit sparsely hairy, at least at first, 6-8 mm. 
in diameter ,globose ,flattened, bright yellow, then orange-red not glaucous, 
four carpels commonly developing, 2 seeds in each carpel, 3 mm. long. 
Throughout our range at all but the highest elevations, being especially 
abundant in burns and on subalpine talus slopes which have been sodded by 
Xsrophyllum tenax. In small openings or seepage spots in the higher forests 
it frequently forms dense tangles, similar somewhat to the alder tangles. 
At lower elevations in moist places and in creek bottoms, the leaflets are 
broader and thinner and more coarsely toothed, and the branches are more or , 
less reclining at the base. In openings and at higher elevations the habit ig 
is more erect, the shrub is more dense ami the leaflets becane correspond- 
ingly thicker and narrower with @ finer ’ This variability in form 
has served as a basis for the proposal of several species which apparently 
represent only ecological forms. 
\ fioth. 
