Sugar-Cane in the West Indies. 411 
Fig. 12. Stages in the germination of a spore of the fungus in a hanging drop. 
The sowing was made at 2 p.m., Dec. 3. 
a = 3.30 p.m., Dec. 3' 
*> = 4-30 „ » • x 375* 
c = 6 „ „ 
Temperature throughout 29 0 C. 
Fig. 13. Stages in the formation of a clamp-connexion in a hanging-drop culture. 
The papilla in (a) arose about 100 fx from the growing-point of a hypha and the 
arrow indicates the direction of growth. Temperature 30° C. throughout. (Zeiss, 
D D.) 
a = 1 1.4 a.m., Oct. 4 
b = 11. 7 „ 
C= 11-20 „ „ 
d = 11.25 „ 
, e = 11.35 „ 
/= 12.15 p.m. „ 
Fig. 14. Production of rhizomorphs on the walls of a culture-tube nine months 
after infection. Above, these bodies shade off into white feathery mycelial strands. 
Ee? 
