DEPARTMENT OF 
PLANT SCIENCES 
THE UNIVERSITY OF OKLAHOMA 
NORMAN • OKLAHOMA 
June 12 19^0 
Dr. Lily M. Perry 
Arnold Arboretum 
Harvard University 
Jamaica Plain 30 
Mass. 
Dear Dr. Perry: 
I must apologize for the delay in identifying the Characeae 
from the 19i|8 Archbold Cape York Expedition which you so kindly 
forwarded to me some time ago. The identifications are as 
follows: 
^ L.J. Brass,no. 19078 — Nitella Sonderi Braun 
^ L.J. Brass,no. 19079 — Shara gymnopitys Braun 
y L.J. Brass,no. 19560 — Chara submollusca Nordstedt 
Any time I can be of service again let me know. 
Yours sincerely 
Ivan L. Ophel. 
