342 PROCEEDINGS OF THE AMERICAN ACADEMY 



teeth more or less glandular-serrulate, smoother above, sometimes 

 nearly or quite glabrous (and teeth entire), or the pubescence not 

 resinous ; rhachis more or less prickly or hispid : flowers 2 or 3 inches 

 broad, solitary (rarely 2 or 3) ; pedicel and receptacle very rarely 

 hispid; sepals naked or very rarely hispid: fruit globose, not con- 

 tracted above into a neck, 6 lines broad. — Epimel. Bot. 203. 

 H. Aleutensis, Crepin, 1. c, 14. 41. li. Uurandii, Crepin, Bull. Soc. 

 Bot. France (Compt. Rend.), 22. 19. 



Hah. Alaska, along tlie coast from lat. 62° to Oregon, ami in the moun- 

 tains eastward to Idaho and Northern Utah. — Alaska (Harrim/ton, Turner, 

 Fischer, KeUojr,^ Mcchan, etc;.); British Columbia, on Vancouver Island (A^"//, 

 Engelmann), Observatory Inlet {Scoiiler), on Eraser Kiver [Kn-jdmann], Columbia 

 Valley (Dawson) ; Washington Territory, on ]'uget Sound and at Cape Disap- 

 pointment (Engelmann ^ Sargent), Cowlitz (Engelmann), Klickitat County (Suks- 

 dorf), on tiie Wenatchee (Brandcijee), and Fort Colville ( WilLrs, ITa/swi) ; Oregon, 

 at Astoria and the Dalles {Nuttall, Hall, Engelmann, Uuwell), Hood Kiver (.1//s. 

 Barrett, Henderson), Blue Mountains (Nevius, Cusick); Iihiho, on the Clearwater 

 ( Wilkes, Spalding), near Boise City ( Wilcox) ; Northern Utah, in the Wahsatcb 

 ( Watson). 



A very variable species, though there seems to be no combiriation of char- 

 acters upon wliich it can be satisfactorilj' divided. The species was originally 

 made upon the nearly glabrous form (including Crepin's varieties /y/d/im and 

 pubfisctnfi) , which is of frequent occurrence on the coast, but is the more usual one 

 in the interior. The resinous pubescence is sometimes very dense, and, as in 

 otlier species, is usually accompanied with serrulate teeth. It is very seldom 

 tliat either pedicels or sepals, and still more so that the receptacles, are at all 

 hispid. The spines are often very broad at base (on vigorous shoots sometimes 

 a half-inch broad and long). Scattered prickles in addition to the spines are 

 rare. II. Aleutensis, Crci)in, was based upon a vigorous stem without spines. 

 R. Durandii, Crepin, is an extreme form, with very large spines and densely 

 hispid and prickly, and with the foliage very resinous. 



A probable form with the fruit and pedicels hispid is found in Western Mon- 

 tana, at Rock Creek in Bitter-Root Valley ( Watson), unarmed, and at Bozeman 

 (Koch), with slender spines. 



++ *+ Flowers corymbose or solitary, smaller. Fruit smaller. Stipules short 



and narrow. 



6. R. PisocAUPA, Gray. Stems slender, armed with straight stout 



or slender ascending or spreading spines, or sometimes naked, not 



prickly : stipules mostly narrow, very rarely sliglitly glandular on tlie 



margin ; rhachis pubescent, sometimes prickly ; leaflets 5 or 7, oblong 



to oblong-ovate or -obovate, shortly acuminate to obtuse, rounded or 



subcuneate at base and sessile or nearly so, smooth above, paler and 



pubescent beneath, simply toothed, usually small (the terminal 5 to 18 



lines long): flowers corymbose, or often solitary ou short branche.s, an 



inch broad, ou short slender smooth or rarely sparingly hispid pedicels ; 



