10 Trans. Acad. Sci. of St. Louis. 
19. COSMARIUM Corda. 
21. C. BROOMEI Thwaites. In material from Minden, collected by 
Dr. Hapeman Oct. 19 (Woods). 
. XANTHIDIUM Ehrb. 
22. X. FascicuLatum (Ehrb.) Ralfs. In material from Minden, col- 
lected by Dr. Hapeman (Woods 
21. ARTHRODESMUS Ehrb. 
23. A. ocTOCORNIs Ehrb. In material from Minden, collected by Dr. 
Hapeman (Woods). 
bo 
(=) 
22. EUASTRUM Ehrb. 
24. KE. INERME Lund. In material from Minden, collected by Dr. 
Hapeman (Woods). .~ 
23. MICRASTERIAS Ag. 
25. M. AMERICANA (Ehrb.) Kg. Minden, in material collected by Dr- 
_ Hapeman (Woods). 
26. M. SPECIOSA Wolle. Minden. In material collected by Dr. Hape- 
man (Woods 
24. STAURASTRUM Meyen. 
27. S. ARISTIFERUM Ralfs. Minden. In material collected by Dr- 
Hapeman (Woods). ! 
11. DIATOMACE.®. 
25. GOMPHONEMA. : 
28, G. ACUMINATUM Ehrb. var. Laricerps Ehrb. Minden. In ma- 
terial collected by Dr. Hapeman. (Bessey). 
12. ENTOMOPHTHORACE. 
26. pei a Cohn. 
9. E. aPHipis Hoffman. On Aphis Sp. on Polygonum. Ashland. 
Oct. (Williams). 
OOPHYTA. 
138. CEDOGONIACE. 
27. GEDOGONIUM Lk. 
30. CE. BORISIANUM (Le Cl.) Wittr. 
lected by Dr. Hapeman (Woods). 
Sr. : Ciaasy, Kg. Minden. In materialcollected by Dr. Hape- 
In material from Minden col- 
28. BULBOCHETE Ag. 
$2. B. POLYANDRA. Cleve. “Minden. In material collected by Dr. 
Hapeman (Bessey). 
