844 Wisconsin Academy of Sciences, Arts, and Letters. 
471. Rosa rubiginosa, L. Sweetbrier. 
Rare; well-established at a few points. 
472. Pyrus Ioensis, Bailey. Wild Crab-apple. 
Common; in open woods. 
473. Pyrus arbutifolia, L. f. Chokeberry. 
Rare; at Berryville, Kenosha Co., the only known sta¬ 
tion, in a now dry but at one time probably a rather 
moist situation. 
Cheney has not met with the red choke-berry in Wis. 
though accredited to Wisconsin in Swezey’s list. The 
fruit is not at hand, but in my specimens the cyme and 
lower leaf surfaces are densely tomentose, and I there¬ 
fore refer it to the above without very much doubt. 
474. Amelanchier Canadensis, T. & G. June-berry. 
Common; wood borders. 
475. Amelanchier Canadensis, T. & G., var. (?) oblongifolia, 
T. & G. (A. Botryapium, DC.) 
Frequent; inclines to more open situations than the 
preceding. 
475. Crataegus punctata, Jacq. The species of this genus are 
commonly called Thorn Apple. 
Common; open woods, thickets and roadsides. 
476. Cataegus coccinea, L. 
Common; same habitat as preceding. 
477. Crataegus coccinea, L., var. mollis, T. & G. 
Common; same habitat as preceding. 
478. Crataegus tomentosa, L. 
Common; same habitat as the other thorn-apples. 
(Besides the above, other forms occur that were for¬ 
merly called C. coccinea, L. They need further study 
to determine their proper place in the now most extensive 
treatment of this genus.) 
479. Prunus Americana, Marsh. Wild Plum. 
Common; in woods and thickets. 
480. Prunus nigra, Ait. Wild Plum. 
Common; quite as much so as the foregoing and 
readily distinguishable from it. In similar situations. 
