ERRATA 
Page 336, line 6 
for twelve read fourteen 
Page 336, line 8 
delete ‘‘the Gramineae by four,”’ 
Page 339, line 6 
for Gramineae read Cyperaceae 
Page 340, last line 
replace the , by a. 
Page 341, line 1 
delete ‘‘from the Gramineae’’ 
Page 341, line 2 
insert , Gramineae after Frake 512 
Page 341, line 4 
insert , Gramineae after Kajewski 276 
Issued January 26, 1972 
[ xx ] 
