230 Rhodora [DECEMBER 
Labrador and Newfoundland to Maine; Michigan; the Rocky 
Mountains; and the Pacific Coast states. 
Some typical eastern specimens are: — LaBRADOR: Blanc Sablon, 
July 30, 1910, Fernald & Wiegand, no. 4040. NEWFOUNDLAND: 
Birchy Cove, July 22, 1910, Fernald & Wiegand, no. 4089. QUEBEC: 
Vicinity of Cap à l'Aigle, July 22, 1905, J. Macoun, no. 68144; in 
sphagnum, Table-top Mountain, Gaspé County, Aug. 5, 1906, 
Fernald & Collins, nos. 722, 723; alluvium of Nouvelle River, Nouvelle, 
Bonaventure Co., July 19 and 20, 1904, Fernald & Collins. NEw 
Brunswick: Brackish marsh, Bathurst, July 24, 1902, Williams & 
Fernald. Nova Scotia: pebbly lake shore, North Sydney, Cape 
Breton Island, July 21-25, 1901, Howe & Lang, no. 752. MANE: 
Mt. Desert Island, July 12, 1897, E. F. Williams | MICHIGAN: 
Isle Royale, July and August, 1909, W. S. Cooper, nos. 18, 19, 20; 
Turin, Marquette Co., June 21, 1901, B. Barlow. 
One result of this study is to empliasize more than ever the dis- 
tinctness of G. trifidum from all of its near relatives. The variety 
here under discussion has long been a source of confusion, but the 
discovery of many transitions to G. Claytoni rather than to G. trifidum 
makes its position quite clear. | 
WELLESLEY COLLEGE. 
ERRATA. 
Page 28,line 12; for ton read tun. 
agp ton 1; omit the comma after those. 
* 606, “ 2,3; omit by the Vienna Rules. 
“ 606, “ 4; for for us read by the Vienna Rules. 
“ 67, “ 38; after Collect insert a period. 
“ — 85, “ 42; for COMGLOMERATUS read CONGLOMERATUS. 
“ 86, “ 33; for Buchenan read Buchenau. 
* 96, “ 31; for Leharpe read Laharpe. 
wots 88 tr. es. for T. redd J. 
“ 103, “ 30; for Euphasia read Euphrasia. 
“ 140, '* 21; for SERYPLLIFOLIA read SERPYLLIFOLIA. : 
* 60, “ 17; for of read for. 
* ]70, " 15; for Grey read Gray. 
* 186, “ 9; for lanceolatus, read lanceolata. 
Vol. 12, no. 143, including pages 209 to 220, was issued 9 December, 1910. 
