194 Rhodora [SEPTEMBER 
Robinson no. 249; roadside, Kingston, August 3, 1899, A. A. Eaton 
no. 150; East Kingston, June 24, 1900, A. A. Eaton; Hampton Falls, 
August 5, 1899, A. A. Eaton. 
VERMONT: woods, Hancock, July 5, 1905, E. F. Williams; Manches- 
ter, July 21, 1898, M. A. Day no. 233. 
MASSACHUSETTS: great swamp, Amesbury, June 24, 1899, A. A. 
Eaton no. 49; Boston, C. E. Faxon; id. W. Faxon; rich shady woods, 
West Roxbury, July 13, 1902, F. G. Floyd no. 1044; wet rich shady 
woods, Hyde Park, July 6, 1902; F. G. Floyd no. 1032A; shady 
woods, Milton, July 5, 1902, F. G. Floyd no. 1028; sandy bank, 
Concord, August 10, 1908, Æ. F. Williams. 
CONNECTICUT: low woods, Southington, July 18, 1899, ©. H. Bissell. 
New York: Trout Lake, Hermon, September 4, 1900 (two col- 
lections), B. D. Gilbert; Clayville, July 25, 1899, B. D. Gilbert (type 
material of Gilberts A. filix-foemina rubellum); bottom woods, 
Gouverneur, July 1900, E. C. Anthony; river bank, Pine Grove, 
July 8, 1894, Grace Gilbert. 
PENNSYLVANIA: Friendsville, September 1, 1906, M. H. Grant. 
Ontario: Ottawa, August 21, 1915, Fr. Rolland no. 135; Plevna, 
August 11, 1902, J. Fowler. 
Onto: Newark, May 6, 1905, H. A. Gleason. 
MicuicaNn: moist woods, Hamlin Lake, Ludington, Mason Co., 
July 7, 1910, Ralph W. Chaney no. 109; among rocks in low places, 
Keweenaw Co., August, 1889, O. A. Flarwell]. 
Iuurnots: Lincoln, July 4, 1899, herb. of H. A. Gleason no. 778. 
Wisconsin: Milwaukee, J. A. Lapham. 
Minnesota: White Bear Lake, July 17, 1885, J. H. Schuette. 
Missourt: Canton, May 30, 1906, John Davis; rich woods, Sibley, 
June 30, 1906, B. F. Bush no. 3999. 
SoutH Dakota: Sylvan Lake, Black Hills, altitude 6000-6500 ft., 
July 20, 1892, P. A. Rydberg no. 1195. 
GG. Pinnae acute, pinnatifid pinnules oblong, obtuse, ob- 
securely toothed, membraneous wing along the rachis of 
the pinna strongly developed. 
A. angustum var. laurentianum. 
ATHYRIUM ANGUSTUM var. laurentianum, var. nov., frondibus ac 
fertilibus ac sterilibus consimilibus membranosis, pinnis pinnatifidis 
acutis, pinnulis oblongis obscure serratis ala membranosa conjunctis, 
soris haud confluentibus ex pinnae costa remotis. 
A northeastern variety with fronds corresponding to those of young 
plants of the variety rubellum, but the ample fruiting, and the strongly 
developed rootstock indicate clearly that the plants are mature. 
The range of this plant is indicated by the following list of the speci- 
mens in the Gray Herbarium: 
LABRADOR: Wabeck Harbor, August 4, 1891, Bowdoin College 
expedition to Labrador no. 215. 
NEWFOUNDLAND: boggy places on hill southwest of Tilt Cove, 
