BETTS : THE FUNGI OF THE BEE-HIVE. 137 
formation of the ascus, may vary occasionally (Stoppel, pp. 337-8, 
ee 335). The spores are of an asymmetrical pointed oval form, and 
usually measure 6 x 3. (Stoppel gives 5.2 x 3 pas the average). 
The ascus is 10 » in diameter. 
~ vd 
& a 
Fig. 2:—Eremascus fertilis. Formation of ascus ; Fig. 3.—Ervemascus fertilis. Ripe ascus 
older stage. x 1,400. and ascospores. X 1,400. 
B 
