22 Brierley, Life-History of Leptospliceria Lemanece. 



PLATE I. 



Fig. I. — Mycelium from the lumen of the host shewing the two 

 types of hyphse. x 750. 



Fig. 2. — Haustorium branching in the vacuole of a generative 

 filament cell. The cell contents have degenerated. 

 X 1,000. 



^4''- 3- — Haustorium penetrating the cell protoplasm and send- 

 ing a branch into the vacuole. Traces of the cell 

 nucleus still remain. x r,ooo. 



Fig. 4. — Hyphal dilations shewing a dumbbell-shaped appear- 

 ance. X I, coo. 



Fig. 5. — Intercellular hyphal dilations containing two nuclei. 



X 2, GOG. 



Fig. 6. — Conjugation of a terminal with an intercalary cell. 



X 3,GGG. 



Fig. 7. — Dilation containing a nucleus of twice the normal size. 



X 2,OGO. 



Figs. 8, 9, 10. — Uninucleate ascogonia clothed by finer hyphae. 



X 2,000. 

 fig. II. — The ascogonium after the first nuclear division. 



X 2,000. 



Fig. 12. — The division of the ascogonium into multinucleate 

 cells. X 2,000. 



Ftgs. 13, 14. — Ascogenous hyph?e shewing asci arising from the 

 binucleate cells. x 3,000. 



Fig. 15. — Portion of the base of a mature perithecium shewing 

 the pigmented wall cells, the sterile tissue, asco- 

 genous hyphfe cut across in various directions, and a 

 uninucleate ascus. x 3,000. 



