172 Journal of the Mitchell Society [March 



Fig. 7. An abnormality in which the branch taking the place of a clamp con- 

 nection has grown out and connected Avith the second cell beyond its 

 place of origin, x 154. 



Fig. 8. Another common abnormality in which the clamp connection growing 

 out from a branch connects with the mother hypha. x 154. 



Fig. 9. Hypha of the more slender type with a l>ranch arising from near the 

 center of a cell, x 154. 



Fig. 10. Anastomosing branches in the vegetative mycelium, x 154. 

 All drawings made with the aid of a camera lucida. 



