84 
IOWA ACADEMY OF SCIENCE 
The Percentage Distribution of Plants on the South Slope (B). 
Species 
Lespedeza capitata 
Vicia americana 
Lathyrus ochroleucus 
Zanthoxylum americanum 
Oxalis corniculata 
Polygala Senega 
Rhus glabra 
Rhus Toxicodendron 
Vitis vulpina 
Tilia americana 
Aralia nudicaulis 
Zizia aurea. 
Cornus asperifolia 
Fraxinus americana 
Apocynum androsaemifolium . 
Phlox pilosa 
Phlox divaricata 
Teucrium canadense 
Monarda fistulosa 
Pedicularis canadensis ....... 
Galium circaezans 
Galium boreale 
Galium sp 
Lonicera dioica 
Viburnum pubescens 
Solidago latifolia (?) 
Solidago ulmifolia (?) 
Solidago canadensis (?) 
Aster sagittifolia 
Aster sp. 
Erigeron philadelphicus 
Heliopsis scabra 
Prenanthes alba 
Percentage of Plants to Each Plat 
0.9 
0.6 
0.3 
’ 4"3 
13.0 
0.3 
0.6 
0.1 
0.4 
0.4 
3.4 
'o'.i 
3.0 
.03 
"ol 
5.2 
0.3 
"o'6 
‘ 2'0 
'o"3 
3.5 
0.1 
"I’S 
0.1 
'2~5 
0.9 
To'.s 
0.7 
1.3 
0.4 
0.5 
0.2 
0.5 
1.3 
"OJ 
0.3 
0.1 
0.9 
0.7 
6.9 
'o"i 
0.5 
0.1 
"o'i 
+ 
+ 
~l"2 
7.6 
2.9 
”61 
3.9 
7.3 
6.3 
4.2 
1.0 
3.1 
15.8 
