PIPER FLORA OF THE STATE OF WASHINGTON. 323 



Spkcimens examined: Olympic Mountains 2208; Mount Rainier, Piper 2037; AUen 

 282; Cascade Mountains, latitude 49°, LyaJl in 1859; Stevens Pass, Whited 1430; Fish 

 Lake, Dunn, August 8, 1900; Bridge Creek, Elmer 673. 



Zonal distribution: Hudsonian. 



GROSSTJLARIACEAE. Currant Family. 



RIBES. Currant. Gooseberry. 



Stems usually armed with spines and frequently with prickles ; leaves 

 plicate in the bud. 



Peduncles 1 to 4-flowered; calyx tube campanulate or cylindric. 

 Flowers about 2 cm. long, dark purple; berries warty, gland- 

 ular 1. R. lolhii. 



Flowers much smaller, greenish or purple or white. 



Berries prickly 2. R. vntsonianum. 



Berries smooth. 



Calyx lobes longer than the tube; stamens decid- 

 edly longer than the whole calyx. 



Flowers white; calyx lobes narrow 3. Ri niveum. 



Flowers greenish or purplish; calyx lobes 



broader 4. R. divaricatum. 



Calyx lobes equaling or shorter than the tube. 



Stamens scarcely longer than the whole calyx ; 



flowers greenish ; prickles often wanting ... 5. R. inerme. 

 Stamens decidedly shorter than the whole calyx. 



Lobes equaling the campanulate tube 6. R. irriguum. 



> Lobes shorter than the cylindric tube 7. R. cognatum. 



Peduncles nodding; flowers rather numeix)us in a raceme; calyx 

 tube saucer-shaped; berries glandular. 



Leaves glabrous or nearly so ; berries black 8. R. lacustre. 



Leaves pubescent or glandular; berries red 9. R. lentum. 



Stems not thorny or prickly. 



Leaves convolute in the bud; flowers yellow; calyx-tube long 



cylindric 18. R. aureum. 



Leaves plicate in th6 bud; flowers green, white or red. 

 Calyx tube rotate. 



' Berries red, smooth 14. R. cUiosum. 



Berries black, glandular. 



Flowers white 13. R. petiolare. 



Flowers greenish. » 



Racemes erect or nscending. 



Glands sessile 10. R. bradeosum. 



Glands stalked 11. R. laxiflorum. 



Racemes pendent 12. R. JMwellii. 



Calyx tube cylindric or campanulate. 



Flowers red; raceme drooping, many-flowered 15. i?. sanguineum. 



Flowers white or greenish ; inflorescence few-flowered. 

 Berries red or orange, glabrous or slightly glandu- 

 lar; leaves resinous-dotted; raceme drooping.. . IG. R. cereum. 

 Berries black, glandular; leaves viscid-pubescent ; 



inflorescence corymbose 17. R. viscosissimum. 



1. Ribes lobbii A. Gray, Am. Nat. 10: 274. 1876. 

 Type locality: "Vancouver Island." Collected by Wood. 

 Range: Vancouver Island to North California west of the Cascade Mountains. 



