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American Midland Naturalist Monograph No. 4 



Fig. 102. Russet buffaloberry 

 {Shepherdia canadensis). 



foliage; young twigs brownish or silvery- 

 scurfy; leaves borne in opposite pairs on 

 the stems, oblong, 1 to U/z inches long, 

 thickly coated below with a silvery- 

 gray meal or scurf and thinly so 

 above; flowers small, inconspicuous, 

 clustered in the leaf-axils; berries ob- 

 long, about I/4 inch long, bright red, 

 borne in dense clusters. 



Occurrence. — bryce CANYON: near spring 

 in main canyon, near east boundary. 



2. Russet Buffaloberry (Shep- 

 herdia canadensis Nutt.), fig. 102. — 

 Thornless shrub, 3 to 6 or 10 feet high; 

 leaves opposite, % to II/2 inches long, 

 dull green above, very scurfy below and 

 dotted with rusty patches; flowers small, 

 inconspicuous, yellowish, clustered in the 

 leaf-axils; berries ovoid, red to yellowish, 

 about the size of a small currant, rather 

 insipid and bitter; occurs usually in moist 

 open woods. 



Occurrence. — glacier, common, 3,100 lo 3,000 feet: Kinlla Lake; Crossley valley; 

 Lake McDonald; St. Mary Lake; Swiftcurrent Lake; Red Eagle Lake; Two Medi- 

 cine valley. YELLOWSTONE, 7,000 to 8,500 feet: near east entrance; Sylvan Pass; West 

 Thumb. GRAND TETON, 6,500 to 9,000 feet: Open Canyon; eastern park boundary near 

 Moose. ROCKY MOUNTAIN, occasional. ISLE ROYALE : Rock Harbor, on island near 

 Rock Harbor Lodge; Tobin Harbor, on trail to Palisades. BRYCE CANYON, higher ele- 

 vations: southern part of park. 



3. RouNDLEAF BuFFALOBERRY (Shepherdia TOtundifoUa Parry) .^Low, 

 densely branched shrub with silvery-gray branches; leaves opposite, persistent, 

 round to oval, tending to be somewhat cupped or concave from below, 1/3 

 to 1 1/3 inches long; olive-gray above, densely white-scurfy or mealy below; 

 flowers small, borne in clusters in the leaf -axils; fruits round, covered with 

 a whitish meal. 



Occurrence. — BRYCE CANYON : near eastern boundary. ZION : near west entrance, 

 4,000 feet. GRAND CANYON, 6,500 to 8,000 feet. North Rim, below the rim: Cape Royal. 

 South Rim : Hopi Pomt ; Lipan Point. 



SiLVERBERRY (Eleagnus commutata Bernh.), fig. 103. — Stout bushy shrub 

 6 to 12 feet high or sometimes a small tree up to 15 feet high, closely related 

 to the buffaloberries but the leaves alternate instead of opposite; leaves elliptic, 

 pointed at the tips, 1 to 2^/2 inches long, silvery-scurfy on both sides but more 

 densely so below; flowers solitary or several clustered in the leaf-axils, 4-Iobed, 

 about 1/3 to ^2 inch long, tubular, very silvery on the outside, yellowish 



