THE AMERICAN NATURALIST. [VOL XXXII. 
, with single cell basal. Figs. 3 and 13. — Two-celle 
— Forms intermediate between 1, 2, att Q, 
n 7. — One- 
Ted f 
Fics. r and 2 
RER pigg the pedicel, Figs 4, 5, 8, beg 
I, 14, 15, 17. Fig. 6.—Two-celled form, with lower cell branched. ig. 
celled! e Figs. 9 Il, 14, 15,3 and ıı Three ar ta parallel. 
ingl Figs. tő, 18, and: 20. — Four- 
(Scale of micro- 
Figs. 12 and 19. 
celled form, with sp at right angles. nig 21 to 26. — Normal form. 
