LEPIOTA CEPAESTIPES 9 



beneath the pileus. At 4 a.m. a very thick deposit of spores was 

 found to have accumulated upon it during the night. A third shde 

 was placed beneath the pileus. At 8 a.m. another thick spore- 

 deposit had been formed, but not so thick as its predecessor. A 

 fourth slide was placed beneath the pileus. At 9.30 a.m., after an 

 hour and a half, the new spore-deposit was so thin that it outlined 

 the gills but very faintly ; it therefore seemed evident that the 



Fig. 3. — Lepiotu cepaestipes. Sections of three fruit-bodies coming 

 up among cinders. Sphagnum, etc., in a hot-house. A, in tlie 

 morning, the gill-chamber still intact. B, in the afternoon, 

 the pileus beginning to expand, an annulus left upon the stipe. 

 C, at night, the pileus fully expanded and shedding spores. 

 Natural size. 



discharge of the spores was rapidly ceasing. A fifth slide was set 

 beneath the pileus, and examined at 10.30 a.m. On the upper 

 surface the fallen spores were so few that they could be counted 

 easily. On a sixth slide, between 10.30 a.m. and 11 a.m., only a 

 dozen spores fell. 



The above observations show that the spore-discharge period 

 for the fruit-body investigated began about 7.45 in the evening and 



