34 
THE PLANT WORLD. 
that the species has not spread to the adjoining portions of Iowa. 
Isolated specimens may have occurred further west and east, but 
this is the only native grove found in the county. Mr. Holway 
found an isolated tree near Decorah, and this is the only record 
I have outside of the Myron* locality in Iowa. 
All over Allamakee and parts of Winneshiek and Clayton 
counties extensive plantings have been made. In most cases 
these trees came from Myron. Thousands of seedlings have 
been set out from the Myron grove. In their early stages of 
growth the balsam fir is a beautiful tree, but at the age of 30 
or 40 years the trees die. Some of the largest of the early trees 
set out are 60 and 70 feet high and 18 inches in diameter. Asso¬ 
ciated with the balsam fir on the Yellow River is the white pine, 
which was also loaded with cones, the branches drooping with 
their great load. The Viola blanda and Campanula rotundifolia 
were abundant, the latter and Arabis lyrata found on the lime¬ 
stone rocks. The Saxifraga Pennsylvanica, usually found in 
swamps, was abundant in a moist place surrounded with Hyperi¬ 
cum and mosses. We were especially pleased to find the 
Aconitum uncinatum L. which is recorded for Wisconsin and 
Minnesota. It was quite abundant in the open places in the 
woods. Arabia nudicaulis, A. quinquefolia and Hydrastis Cana¬ 
densis are abundant in places. Viburnum Opulus of our 
northern swamps is associated with CoryhiS.rostrata and Pyrus 
arbutifolia. The Poa WolM also occurs here. 
One would expect to find here three additional conifers: The 
hemlock ( Tsuga Canadensis) which occurs in Monroe County 
on one of the tributaries of the Wisconsin, the Kickapoo; the 
larch (. Larix Americana) which is found in La Crosse County, 
Wisconsin, and near La Crescent, Houston County, Minnesota, 
and the arbor vitae, which occurs on the sandy rocks in the 
Dalles of the Wisconsin, but they are absent. The red maple 
(Acer rubrum) might also be expected, but this seems to 
have reached its western distribution, seven miles from La 
Crosse on the La Crosse River, although it is abundant in the 
Kickapoo River valley. The Myron locality is one of the most 
* Myron is an old P. O. station on the Yellow River, now discontinued. 
