240 Karl M. Wiegand and Arthur J. Eames 



• 



Apparently rare on the chestnut soils of the basin, common around the ravine 

 and lake shore cliffs, and frequent in the McLean region. 



W. Me. to Man., southw. to Conn., Pa., and Mo., and in the mts. to X. C. ; rare 

 or absent on the Coastal Plain. 



The berries are occasionally smooth. 



2. R. rotundifolium Michx. 



Dry rocky or gravelly slopes, in acid or neutral sterile soils; scarce. May 12-25. 



Road toward Buttermilk Glen (D. in C. U. Herb.) ; " South Hill near the 

 'Incline.' Xear the 'Xook' green-house" (D.) ; Groton (D.) ; pasture w. of East 

 Genoa near edge of Salmon Creek ravine. 



W. Mass. and cent. X. Y. to X. C, along the mts. ; practically absent on the 

 Coastal Plain. 



3. R. hirtellum Michx. (See Rhodora 13:47. 1911. R. oxycanthoides of Cayuga 



Fl.) Swamp Gooseberry. 



Open boggy calcareous soils ; frequent. May 12-June 10. 



Michigan Hollow Swamp; Larch Meadow (D. !) ; near Xegundo Woods (D.) ; 

 Mud Creek, Freeville; Mud Pond, McLean Bogs; marshes of Dryden (£>.) ; Miller 

 Bog, Spring Lake ; Westbury Bog ; and elsewhere. 



Lab. to Man. and X. Dak., southw. to Pa. and W. Va, including the Coastal Plain 

 in the north. In coastal Mass. the plant grows around acid bogs. 



4. R. odoratum Wend. (See Rhodora 11:47. 1909. R. aureum of Gray's Man., 



ed. 7.) Missouri or Buffalo Currant. 

 Occasionally escaped from cultivation to banks and thickets. May. 

 Cascadilla Glen, in woods about the Girls' Playground. 

 Native : Minn, to Mo., Ark., and Tex. 



5. R. americanum Mill. (See Rhodora 11:46. 1909. R. floridum of Gray's Man., 



ed. 7, and of Cayuga Fl.) Wild Black Currant. 



Moist banks, on low grounds along streams, and about swamps, mostly in alluvial 

 soil ; common, and generally distributed. May. 



X. B. to Sask., southw. to Va., Ky., Iowa, and Xebr. Xot clearly a calciphile, but 

 very uncommon in sandy soil especially in the coastal regions. 



6. R. nigrum L. Cultivated Black Currant. 



Occasionally escaping from cultivation to hedgerows and moist thickets. 

 Spring>- run near road il of Bald Hill, Caroline. 

 Xative of Eu. 



7. R. lacustre (Pers.) Poir. Swamp Black Currant. 

 Deep boggv swamps, in calcareous regions ; rare. June. 



Michigan Hollow (D.) ; Ellis Hollow (D.); "Freeville Sw.," 1872 (Jordan & 

 Copeland, D.) ; swamp near McLean Bogs (£>.). Xot seen in recent years, and no 

 specimens from the above-named stations can be found. 



Xewf. to B. C, southw. to n. X. E., X. Y., Minn., Colo., and n. Calif., and in 

 the mts. of Pa. 



8. R. prostratum L"Her. ( ? R. glandulosum Grauer.) Skunk or Fetid Currant. 

 Deep boggy swamps, in calcareous regions ; frequent. May 10-30. 



Ellis Hollow Swamp (D. !) ; swamp e. of Slaterville ; Malloryville Bog woods; 

 region of McLean Bogs ; along Beaver Brook : and elsewhere. 



Lab. to Alberta, southw. to n. X. E., Mich., and Minn., and along the mts. to 

 X. C 



