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IOWA ACADEMY OF SCIENCE Voi.. XXVIII, 1921 
EXPEANATION OF PLATE VIII 
Fig. 1 — Ceanothus americanus L. a to i and 1 to p. 
a. to b. Seven leaves from same plant; open woods; West Lake Okoboji. 
c. A leaf from plant on dry hill-top; McGregor. 
d. A leaf from sandy prairie; Muscatine county. 
e. Two leaves; open hillsides; New Albin. 
f. to g. Three leaves; open hillsides; McGregor, 
h. to i. Five leaves; prairie; Mapleton. 
l. to m. Four leaves; prairie opening; Decorah. 
n. Three leaves; open prairie; Roland. 
o. A leaf ; prairie opening ; Allamakee county. 
p. A leaf; open prairie; Nora Junction. 
Ceanothus ovatus Desf. j, k. 
j. Three leaves; open hillsides; New Albin. 
k. Three leaves; prairie opening; Unionville. 
Fig. 2. — Ceanothus ovatus pubescens T. & G. 
a. to b. Eleven leaves from same plant; dry prairie hill; Decorah. 
c. Two leaves; prairie; Harlan. 
d. A leaf from loess prairie; Missouri Valley. 
e. to f. Nine leaves from same plant; prairie; near W. Lake Okoboji. 
g. A leaf from high dry prairie; Missouri Valley. 
h. Two leaves; high dry prairie; Shelby county. 
i. A leaf from open hillside; Decatur county. 
j. Three leaves, from high loess prairie; Shelby county. 
k. A leaf from rolling prairie; Logan. 
l. A leaf from very dry loess prairie; Missouri Valley. 
m. Two leaves, from rolling prairie; Shelby county. 
n. A leaf, from very high, dry prairie ; Harrison county. 
o. A leaf from prairie opening; near Winterset. 
