Staurastrum (Meyen) Lund.
Euastrum (Ehrb.) Ralfs.
Micrasterias Ag.
Onychonema Wallich.
Sphaerozosma (Corda) Arch.
Hyalotheca Kuetz.
MOSSES; ILLUSTRATIVE SAMPLES.
W. A. Kellerman.
[This article was prepared as a suggestion for the Ohio Schools, and is issued simultaneously as No. 17 of the University Bulletin (Series 5.) A wide distribution is advisable and it seems desirable to issue it here also. Ohio teachers, pupils and amateurs will, it is hoped, become more interested in our bryological flora.]
