1915] Fernald and Wiegand,— Genus Euphrasia 197 
The three species, EL. canadensis, E. americana, and E. stricta, form, 
with the local and very distinct E. hudsoniana of Ungava, a group of 
species quite unlike our other large-flowered Euphrasias in the bristle- 
tipped teeth of the bracts, in this character being like several of the 
common European plants. £. stricta and its var. tatarica are European 
and possibly introduced in America, though the variety seems like an 
indigenous plant. It is possible, then, that E. canadensis and E. 
americana are derivatives of E. nemorosa and of E. stricta (doubtfully 
indigenous in America) or of some closely related European species 
introduced into eastern Canada and eastern Maine by the earliest 
European colonists, in the 16th or 17th centuries; and, being annuals, 
the plants have, during hundreds of generations, departed sufficiently 
from their ancestors now to stand as true American species. (See 
also notes under E. stricta and E. americana). 
The Monhegan Island material referred here is not in satisfactory 
condition and further collections may show it to belong, rather, to 
E. stricta. 
Collins, Fernald & Pease; sandy grassland, New Carlisle, July 28, 
902, Williams & Fernald; gravelly soil, Giroux, July 26, 1902, 
Williams & Fernald. Prince Epwarp Istanp: grassy roadsides 
hear Cozen’s Pond, August 29, 1912, Fernald, Long & St. John, no. 
8027. New Brunswick: Campbellton, August 29, 1905, J. Fowler; 
Pasture, Miscou Harbor, August 26, 1913, S. F. Blake, no. 5543a. 
