Vol,Xf/,Pl.XXV/f. 
JbtaaZs of Botany 
p.x.y. 
R£.l, M. Seward, Fig? 3,4, 6-8 H.H.W. Pearson del. 
University Press, Oxford. 
PEARSON. 
B 0 W E N 1 A . 
