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EXPLANATION OF PLATES XXIX AND XXX. 
All drawings were made with the aid of a Bausch and Lomb camera lucida, 
together with a Bausch and Lomb 7s oil-immersion lens. Plate XXX has bee 
reduced one-third in reproduction. 
PLATE XXIX. 
IG. 1. Section of young ascocarp showing portions of ascogonia, whose 
cells are already multinucleate. 
Fic. 2. Median section of an older ascocarp showing ascogonia, young asco- 
genous hyphae, and paraphyses. 
Fic. : Median vertical section showing structure of a nearly mature ascocarp. 
Fic. 4. Section showing young ascogenous hypha; the terminal cell is uninu- 
cleate a the sub-terminal cell, which is to form the — is binucleate. 
Fic. 5. Young ascus showing fusion nucleus with two n 
Fic. 6. Portion of an ascus at time of spore ‘biiaron sowie nuclear 
beak with a system of astral rays; a young spore is also shown, whose plasma 
membrane is completed. 
PLATE XXX, 
Fic. 7. Young ascus showing primary fusion nucleus with one nucleolus. 
1G. 8. Ascus with two nuclei. : 
Fic. 9. Ascus with four nuclei. 
Fic. ro. Ascus with eight nuclei. 
