GROSS TJL ACE JR. 305 



Peduncles mostly 3- (rarely 4-) flowered. Flowers purple, mixed with 

 green. The lobes of the calyx are reflexed in only a few of the 

 flowers. Petals very much dilated and almost lunate at the summit, 

 with an obtusely cuneate base about half the length of the calyx- 

 lobes. Stamens longer than the calyx. Style 2-cleft about one-third 

 of its length. Ovary ovate, smooth. Fruit not collected. 



4. RlBES LACUSTKE, Poir. 



Hab. Puget Sound, and east to the Cascade Mountains. — The 

 western differs from the eastern plant in the rather broader petals 

 and shorter hairs of the ovary, but there seems to be no other dif- 

 ference. 



5. Ribes RUBRUM, Linn. 



Hab. Interior of Washington Territory, east of the Cascade Moun- 

 tains. — There is but a single specimen of this plant in the collection, 

 but there can be little doubt of its identity with the common Red 

 Currant. It extends nearly across the northern part of our continent, 

 but has not been found south of latitude 40°. 



6. Ribes cereum, Dough 



Hab. On rocks and in sheltered situations; common in the interior 

 of Oregon and Washington Territory. It occurs eastward to the 

 Rocky Mountains and southward to New Mexico. — The waxy dots 

 on the leaves are extremely minute, and are not always white, but 

 often brownish, or sometimes confluent into a thin varnish. Fruit 

 yellowish. Bracts unusually large for this genus; often incisely 

 toothed at the summit. 



7. Ribes hirtellum, Michx.? 



Hab. Rocky places in the open country, and in river-valleys be- 

 tween Spokane River and Fort Colville, Washington Territory. — 

 Branches almost unarmed, the spines being few and very short. 



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