MICHIGAN ACADEMY OF SCIENCE. 
155 
Smilax hispida. 
Rubus liispidus. 
Rosa Carolina. 
Glycine Apios. 
Lycopus nniflorus. 
Also found in the tamarack swamp. 
Galium triflorum. 
Mitchella repens. 
September 2nd. 
Acer nigrum. 
Aster laevis, Yar. amplifolius. 
October 27tli. 
Smilax rotundifolia, Yar. quadrangularis. 
Hamamelis Yirginiana. 
Rhus radicans. 
Acer rubrum. 
Scrophularia leporella. 
Solidago serotina, Yar. gigantea. 
THE RIVER SERIES OR FLOOD PLAIN. 
The flood plain is a nearly level flat through the center of which the 
river winds its crooked way. It is about 60 rods wide at its widest 
part. On both sides of the river, at the upper end of the valley, the plain 
is covered with a large “park-like” growth of oak and elm, but the 
greater part of the east side is covered with a dense thicket of hazel, 
willows and other shrubs. The surface is too or three feet - above the 
water level and is often flooded by spring freshets. The soil is a rich 
muck mixed with sand washings from the ranges, and in places is con- 
verted into mud swamps by the overflow from cold springs. It is 
covered with a good grass-sod. 
May 19th, 1912. 
Populus balsamifera. 
Quercus macrocarpa. 
Ulmus Americana. 
Cardamine pratensis. 
Fragaria Virginiana. 
Yitis vulpina. 
June 2nd. 
R a n un cu 1 u s recurvatus. 
June 9th. 
Populus deltoidea. 
Ranunculus liispidus. 
Yic-ia Americana. 
Lonicera Tartarica. Yar. alba. 
Yiburnum pubescens. 
June 11th. 
Carex stipata. 
Iris versicolor. 
Iris versicolor, Yar. Yirginiea. 
Ranuncul us sceleratus. 
