ROSACEAE (ROSE FAMILY) 125 



JJ. Racemes usually fewer than lo-flowered; sepals white or greenish; anthers 



with a conspicuous cup-shaped apical gland. 



L. Leaves glandular-dotted; inflorescence pendulous; berry red or orange, 



glabrous or slightly glandular. E. R. cereum (SQUAW CURRANT) 



LL. Leaves densely glandular-pubescent; inflorescence spreading or ascending ; 



berry black, glandular. E. R. viscosissimum (STICKY CURRANT) 



AA. Some of the stems either spiny or prickly, or both. (GOOSEBERRIES) 



M. Flowers more than 4 in a cluster; calyx tube saucer-shaped; berries glandular. 



N. Leaves glabrous or nearly so; berries black; racemes mostly io-is-flowered. 



W. C. E. R. lacustre (SWAMP GOOSEBERRY) 



NN. Leaves pubescent or glandular; berries red; racemes mostly 3-7-flowered. E. 



R. lentum 



MM. Flowers 1-4 in a cluster; calyx tube campanulate or cylindric. 

 O. Berry spiny or densely glandular-hairy or velvety-pubescent. 

 P. Calyx green or yellow. 



Q. Berry velvety-pubescent; leaves 1-1.2 cm. wide; sepals yellow; petals 

 yellow. U. R. velutlnum 



QQ. Berry bristly; leaves 2-6 cm. wide; sepals green; petals white. 

 R. Stem trailing; leaves densely pubescent beneath; petiole not glandular ; 

 anthers exserted. U. R. binominatum 



RR. Stem erect or ascending; leaves pubescent beneath on the veins only; 

 petiole glandular; anthers included. C. E. R. watsonianum 



PP. Calyx purplish to red. 



S. Young twigs densely bristly. U. R. menziesii 



SS. Young twigs not or very scantily bristly. 



T. Anthers mucronate-tipped; ovary not glandular; berry 1-2 cm. long, 



bristly. U. R. roezli 



TT. Anthers not mucronate-tipped; ovary densely stalked-glandular; berry 



1-2 cm. long, densely glandular. W. C. R. lobbii (GUMMY GOOSEBERRY) 



TTT. Anthers not mucronate-tipped; ovary not glandular; berry 2.5 cm. or 



more long, fleshy-spiny. U. R. marshallii 



OO. Berries smooth. 



U. Calyx lobes longer than the tube; stamens decidedly longer than whole calyx. 

 V. Calyx white, its segments narrowly lanceolate. E. R. niveum 



W. Calyx greenish purple, its segments oblong. W. C. E. R. divaricatum 



UU. Calyx lobes equal to or shorter than the tube. 



W. Bracts much shorter than the pedicels; stamens scarcely longer than the 



whole calyx. E. R. saxosum 



WW. Bracts nearly equaling the pedicels; stamens decidedly shorter than the 



whole calyx. 



X. Leaves 1.5-4 cm. wide; calyx tube slightly hairy, much longer than wide, 



cylindric; calyx segments 2-4 mm. long. E. R. cognatum 



XX. Leaves 3-7 cm. wide; calyx tube glabrous, hardly longer than wide, 



campanulate; calyx segments 5-8 mm. long. E. R. irriguum 



ROSACEAE (ROSE FAMILY) 



Herbs or shrubs. Leaves usually alternate; stipules usually 

 present. Flowers solitary or clustered. Sepals normally 5, 

 rarely 4 or 6-9, often united at base. Petals as many as the sepals, 

 or none. Stamens i to many, usually on the calyx. Pistils i to 

 many, usually wholly distinct. Ovary i -celled. Fruit akenes or 



