ON ERGOT. 



19 



consisting of tortuous and anastomosing ridges or plates, with 

 numerous open cavities in the interior. Tulasne shewed that the 

 sphacelia was organically connected with the ergot, and was, indeed, 



Fig. 6. 



only a condition of it. Bauer detected the elongated nucleated cells 

 of the sphacelia, but, like Quekett, he did not observe their connection 

 with the supporting structures ; while the cavities accurately repre- 

 sented by Bauer in the foldings of the sphacelia (Fig. 6) are the free 

 spaces where the nucleated cells or " spores" are produced. 



The illustration (Fig. 7), copied from Tulasne, shows the relation 

 of the different structures. The dark lower portions of the woodcut 

 is a section through the growing sclerotium, or ergot properly so 

 called. This is composed, as we have already seen, of densely- 

 packed polygonal cells, filled with oil globules. On its outer surface 

 and from its apex ai'e given off elongated cells, which are the sup- 



c 2 



