8o 



FUNGI 



FIG. 3. P9rtion of horn- 

 shaped sclerotium of Claviceps 

 purpurea, bearing four stalked 

 receptacles. 



to;a 

 ^& 



;x~u~0> OQr 



-olW* * 



FIG. 2. Claviceps purpurea. A. Young sclero- 

 tium, c, with old sphacelia, s. p. The apex of the 

 dead ovary of rye. B. Upper part of A, in longi- 

 tudinal section, showing sphacelia, s. C. Trans- 

 verse section through the sphacelia, more highly 

 magnified, m. The mycelium, surrounded with the 

 hyphae. b. Bearing conidia. p. Conidia fallen off. 

 10. The wall of the ovary. D. Germinating conidia, 

 forming sporidia, *. (Backs.) " 



FIG. 4. Longitudinal sec- 

 tion of a receptacle, magnified , 

 showing the perithecia. 



FIG. 5. A single perithecium of Claviceps Purpurea, 

 magnified, showing the contained asci. 



FIG. 6. Asci containing the 

 long, slender ascospores. 



