44:4 ROSACEAE 



teeth, glabrous on both sides; flowers solitary; hypanthium glabrous, globose, 

 in fruit about 1 cm. thick; sepals glabrous or sparingly glandular: petals rose- 

 colored, 1.5-2 cm. long. Canons: Colo.-* Utah— Ariz. Submont.—Mont. 

 Je-Au. 



21. R, Fendleri Crep. Stem low, 1 m. high or less, terete, armed with a 

 few prickles which are straight, slender, 5 mm. long or less; stipules glandular- 

 pruinose on the back, more or less glandular-dentate; rachis and petiole densely 

 glandular-puberulent and often somewhat glandular-hispid or with weak prickles; 

 leaflets 5-7, elliptic oval or obovate, 1-3 cm. long, rather thin, green and gla- 

 brous above slightly paler, puberulent and glandular-pruinose beneath, often 

 double-serrate ; hypanthium globose, glabrous, in fruit 8-10 mm. broad; sepals 

 C"^fe^ glandular on the back; petals rose-colored, obcordate, about 1.5 cm. 

 kjng. Woodsand copses: N.M.-Ariz.-S.D.-Mont. Plain— Submont. My- 



Infl^es^encflfniX L^^flnw^.-r^ L^'/^?"^?^''' ?■ ^''"^^''' '^ habit, the corymbose 



vplln!"-=?' ^^^so^^a'Ta Rydb. Stem tall, 1-3 m. high, terete, at first hght- 

 yeUo^ ish green, armed with straight prickles, somewhat rt5trorse, terete, 3-7 

 fr^^H wiVfr ?i *n "" infrastipular, others scattered; young shoots copiouslv 

 3 rl^7« 1 I. '■^'^'' prickles; stipules glandular-dentate or ciliate; petiole 

 th\n o-l K.f "k" f°'"?t™<^« ^;th a few prickles; leaflets 5-7, eUiptic or oval, 

 cm loS w' Tk^°*^ f'J''- yelo^vish green, coarsely serrate throughout, 1-4 

 m'cl^^ri ^^r "^ f °Vl'' ^* ^'^^ Scabrous, light green, in fruit about i cm. 



rathi J?;r3nn'^^''t ^^"w" ^tem terete, glabrous, 0.5-2 m. high, armed with 

 riahrnnr^.n«n / 1 ""^f "^ ""' f^^^*^^ ""'"^^'i P^^^les, 4-8 mm long; stipules 

 brots n;cfJonl^ll ?"?i'''>'''*''^- r, '°"^'^^'^''^* toothed; rachis and petiole gla- 

 cunSp^t t^P h^c *^ a few prickles or stalked glands; leaflets 5-t, obovate, 

 1-2 cm r.rplt ^ • «f ''^teabove, glabrous on both sides, glaucous beneath 

 thick s^n^l It ^''"^^ teP^^'P^'T, S^obose, glabrous, in fruit 8-10 mm. 

 fFl CoInTnir ' or slightly glandular on the back. R. Macounii Rydb. 

 Lunell RkA k""*"? ^- ^A ^'"''dhergti^n^ (?) R.funhriatula Greene. R. diserta 



K-MonF Je Jl' '°^'^'- ^^«k.-N.D.-Kans.-Colo.-Utah-B.C. 



the nt'w^shont\'*'?n?'''f-^T'^^- .^itf'"-^^ «^- high, unarmed or nearly so, except 

 ofless tonZH 'fin f'^'^K^'^SP^'''^'^^ P''^^^"* «"^^" ^"^ straight; stipules more 

 serrate ??Srnn«K^ puberulent; leaflets 5-7, broadly oval, coarsely Ind evenly 



5"brous^?fcf 7''>^"k^^,P|'^''""1""^ ^^^«^th, 2-4 cm. long; hypanthium 

 Diik ^bm^^^f ^^ '"'* ^^r^ ^ cm. broad; sepals glabrous on the back; petals 

 pmk, about la mm. long. Among willows: Nev.— Ida.— (? Utah ) Jl 



K I'- ■?• ^^Itramontana (S. Wats.) Heller. Stem tall 1-3 m hi^h rarelv 

 an'd- Sn ^nru n'oT"' 17*^ ^^raight prickles, 5-7 mm. long sSpiiles plberS 

 usiialh roundpd .? ^^1?^'*" J"""^' ^"^"^ denticulate; leaflets Visually 7, oval, 

 and diu o^boi .i ji""*^ ?^^'• l^^'^te. with broad teeth. 2-4 cm. long,' green 

 pruinose beneath hvna'nf^"^'''" ^T' ^'^^^^'^^ ^^ove, puberulent and often also 

 daCus S slfitlv .^r "'l^^^'^fr' glabrous, in fruit 8-10 ram. thick; sepals 

 Pacific CoLtfS,r^^ \^^ ^^'^^ (i" the related R. jnsocarpa oi the 



more ff caZiK.^ W/ ^^^,^^'H' ^^^""^^ obcordate, 1.5 cm long or a little 



oftefbrStlJSf SJII?''''!^"^^- ?t^™ ^^out 1.5 m. high, armed with numerous 

 lenro dlbrlte S en r^'^r^'^'''' ^'1"'.^^ °^^- long? stipules slightly puberu- 

 4uaUV w5 W ' W LfX 1 R '""^toothed; rachis and petiole finely puberulent, 

 thin 1 ^ nri 1 bristle-like prickles; leaflets obovate or rarelv oval very 



g^abrou^ a W fineltZh^ Tt' ^^^ '"^^"'^^ ^^^tli. green on both' sides, 

 fS^Slaftr^' ',"lt Ptl™/r„lee. t^^. ---« -d pruinL beneath; hv^an- 



