TU SETTORE — 
VARIATIONS IN EPIG.EA REPENS, 79 
not only are no two patches alike, but that the eye convinces us of the 
fact on the first glance over the field. Plain as the differences thus 
presented were, I found, however, some difficulty in describing them 
in language; and besides being a diccious plant, there might be 
brought in the objection of intercrossing between allied species of this 
or neighbouring genera, if not of the individuals of the opposite sexes 
themselves, to account for so many forms. I therefore chose Zpigea, 
as belonging to a Natural Order exclusively hermaphrodite ; containing 
only one natural species; not very closely allied to any of the neigh- 
bouring genera, Andromeda, Clethra, Gaultheria, etc. ; none of which, 
at any rate, flower at the same time with it. 
n the 19th of April I gathered specimens from sixteen different 
plants on the Wissahickon, without taking any pains to make any 
particular selection of varieties. The following descriptions show their 
variations :— 
1. Tube of the corolla half an inch long, contracted in the middle : 
segments of the corolla broadly ovate, one-third the length of the tube, 
incurved, pure white. Seales of the calyx two-thirds the length of the 
tube, narrowly lanceolate, interior ones white and membranaceous with 
a crimson base. 
2. Tube half an ineh, regularly cylindrical ; segments half as long 
as the tube, triangularly ovate, light rose, incurved. Scales one-third 
the length of the tube, white coriaceous. 
3. Tube quarter of an inch, thick (one-eighth wide), cylindrical ; seg- 
ments rather longer than the tube, triangularly ovate, ineurved, eep 
rosy pink. Scales three-fourths the length of the tube, rosy red, with 
white margins. 
4. Tube nearly half an inch, contracted at the summit; segments 
very short, scarcely one-sixteenth of an inch, forming nearly five 
ovate repand teeth, purplish-white. Scales greenish-white, simply 
acute. 
5. Tube quarter of an inch long, one-eighth wide ; segments lanceo- 
late, erect, two-thirds as long as the tube, rosy purple. Scales brown, 
not margined, drawn out to a long fine point. 
6. Tube quarter of an inch, cylindrical; segments oblong-ovate, re- 
curved, as long as the tube. One of the anthers slightly petaloid. 
Seales prolonged into almost an awn. 
7. Tube much narrowed at the summit, quarter of an inch long; 
a 2 
