94 
Bulletin Wisconsin Natural History Society [Vol. 11, No. 3 
A. sylvicola. Others occur which are quite distinct from any of 
the foregoing. Hybridism with plants of the macrophyllus group, as 
well as within the non-glandular group itself, undoubtedly occurs 
and may account for some of the variations; but the character 
and extent of such hybridism cannot be definitely determined until 
a more complete determination of specific types has been established 
for this locality. 
A. macrophyllus L. 
A. macrophyllus var. sejunctus Burgess 
This species, in one or another of its protean forms, is found 
throughout the eastern portion of the state and no doubt occurs 
in most wooded sections. It has been collected in Sauk County, 
but is not included in Cheney and True’s Dane County list. The 
variety sejunctus, with hairy stems, has been collected in Outa- 
gamie, Ozaukee, Milwaukee and Waukesha Counties, and Pro- 
fessor Burgess notes a specimen from Juneau County in the Col- 
umbia University herbarium. Many other forms occur which 
suggest Professor Burgess’s species A. biformis, A. uniformis, A. 
elaeagnius, A. roscidus, A. ianthinus , A. multiformis, A. quadratus 
and A. granulosus. Others seem quite distinct from any species 
or variety hitherto described. Plants with greasy leaves occur in 
Milwaukee County and may belong to the variety pinguifolius 
which is credited to Wisconsin by Professor Burgess. 
There is found at Whitefish Bay a group of Asters intermediate 
in character between A. Schreberi and A. macrophyllus, distin- 
guished from the former by the presence of capitate glands, and 
from the latter by the possession of pure white rays. An interest- 
ing series of such plants has been collected, beginning with forms 
with membranous leaves, narrow heads and delicate bracts, and 
ending with luxuriant forms, with heads of unusual size and rays 
of unusual length, and with some of the bracts slightly reflexed. 
Whether these are hybrids, or whether they mark a hitherto un- 
noted stage in evolution, has not been determined. 
A. oblongifolius Nutt. 
The writer is indebted to Prof. A. B. Stout for a specimen of 
this species collected in Sauk County. The Milwaukee Public 
Museum possesses two small plants of the same species which were 
