124 
rium of Lafayette College have been examined as well, and the 
results are given with some conclusions drawn from them. 
Only a part of the specimens have been figured, the great 
similarity of many making more figures unnecessary. The fila- 
ments are uniformly lettered a in the figures, and are shown only 
as far as the point of adnation, except in figure five, which repre- 
sents as well part of the adnate portion of the filament, with over- 
lying epidermis torn loose from its attachment to the corolla. 
The styles are uniformly lettered 6. In making notes I have not 
confined myself wholly to the characters in question, as some of 
the others may shed additional light on the problem. 
The plants examined include L. hirsuta from the following 
localities : a 
Saskatchawan. Scattered hairs on lower half of filament; 
style rather densely hirsute above, but the hairs thinning out below 
(Fig. 1). Corolla not glabrous on the outside; ieaves pubescent 
beneath. 
Black Hills, Dakota. Filaments sparsely hirsute at base, ak : 
tending a third of the way up; style densely hirsute in its entite — 
length (Fig. 2). Leaves glaucous and somewhat pubescent below; — 
corolla tube long and narrow, yellow, not glabrous outside. 
Middlebury, Vermont. Filaments with long hairs scattered 
over the greater part of the length but most thickly at base ; style 
thinly hirsute throughout (Fig. 3). Yellow corolla, calyx and : 
upper part of stem glandular pubescent; leaves pubescent on both a 
sides and ciliate-fringed, broadly oval, pale glaucous beneath, 
Ashland, Nebraska. Filaments glabrous but with a single 
hair on each of two; style densely hirsute throughout, as im F ig 
2. Leaves pubescent beneath, not glaucous; corolla tube long — 
and narrow, not glabrous outside. ao 
Ishpening, Michigan. Scattered hairs on the lower half of a . 
filament, as in Fig. 1; style densely hirsute throughout, as in Fig: 
2. General characters as in the Vermont specimen. s 
Isle Royale, Lake Superior. Filament and style as in the last: 
leaves nearly glabrous above, glandular pubescence of corolla ke 
dense. eee 
Oswego, New York. Filament with hairs scattered ovel © 
greater part of the length ; style thinly hirsute throughout, 
