STATE GEOLOGIST. 121 



R. crispiis^h. Curled Dock. Yellow Dock. 

 Common, or frequent, tliroug;hout the state. 

 [R. obtusifolius, L., will doubtless extend to Minnesota.] 



R. sanguineus, L. Bloody -veined Dock. 

 Chaska, Carver county, Juni. Eare. 



R. inaritiiiius, L. Golden Dock. 



Minneapolis, Roberts, Upham; Chaska, Carver county, Juni; Blue Earth county, 

 Leiberg; Emmet county, Iowa, (rare), Cratty; Murray county, and the Red river valley, 

 Upham; Pembina, Havarcl. South and west. 



R. Acetosellci, L. Field or Sheep Sorrel. '''Horse Sorrel.'" 



Common throughout the state ; plentiful all along the north shore of lake Super- 

 ior, Roberts, Juni. 



THYMELEACEJE. Mezereum Family. 



DIRCA, L. Leatherwood. Moose-wood. 



D. palustris, L. Leatherwood. Moose-wood. 



Common northeastward, extending thus west to the lake of the Woods, Richardson, 

 White Earth reservation. Garrison, and Detroit, H.B. Ay res, and south to the Kettle 

 river, Shumard, southeastern Pine county, Uphain, and St. Croix Falls, Miss Field; 

 frequent, but local, farther south, as near Minneapolis, Simmons, Saint Paul, Miss 

 Cathcart, B.Astings, Mrs. Ray, Faribault, Miss Beane, Blue Earth county (common), 

 Leiberg, New Ulm, Juni, and near the Great spring, Beaver creek, Caledonia, Houston 

 county, Winchcll. 



ELiEAGNACE^. Oleaster Family. 



SHEPHERDIA, Nutt. Shepheedia. 



S. Canadensis, Nutt. Canadian Shepherdia. 



From lake Winnipeg to lake Superior, Say, Schweinitz; north shore of lake Super- 

 ior, Jum ; Minneapolis (rare). Miss Builer. North. 



S. arg-entea, Nutt. Buffalo-Berry. 



Rainy lake, Say, Schweinitz; upper Minnesota river, Geyer; near Wallialla, in 

 northeastern Dakota, Scott. Northwest. 



EL^E AGNUS, L. Oleaster. 



E. arg"entea, Pursh.* Silver-Berry. 



Common from Ada northward in the Red river valley (forming patches tea to 

 twenty rods long on the prairie, growing only about two feet high, fruiting plentifully ; 

 but in thickets becoming Ave to eight feet high), and local in section 5, Eldorado, 

 Stevens county, Upham, Northwest. 



*El^agnds, L. Flowers perfect. Calyx -tube including the free ovary, the limb 

 cylindric-campanulate or tubular below, parted above into 4 valvate deciduous lobes, 

 colored within. Disk glandulose. Stamens 4, adnate to the calyx and alternate with 

 its lobes, the free portion of the filaments very short; anthers oblong. Style simple, 

 straight ; stigma 1-sided. Fruit drupe- like, covered with the thickened dry or fleshy 

 closed calyx-tube ; the stone oblong, 8-striate.— Trees or shrubs, with alternate entire 

 petioled leaves and axillary pedicelled flowers. 



E. AKGENTEA, Pursh. A stolouiferous unarmed shrub, 6 to 12 feet high, the younger 

 branches covered with ferruginous scales; leaves l^/i to 4 inches long and %, to 2i/4 inches 



