508 



COMPARATIVE MORPHOLOGY OF FUNGI 



of intermediate tissue Zw. gefl. PL and the fundaments of the receptacle 

 branches Rp. The plates of intermediate tissue, however, no longer 

 extend to the rind of the upper part of the fructification but end blindly. 

 The corresponding young stages have not yet been investigated, but 



A 



. ' ■ ' V.'- 



'•&»&*.('-?' 



Zwyfirt 



Zit. Gf- Km 



Fig. 330. — Aseroe arachnoidea. 1. Section of upper portion of young fructification, 

 where the formation of the first tramal plates has begun ( X 13). 2. Diagram of egg after 

 removal of rind tissue. 3. Diagrammatic section of a portion of a fructification in the 

 direction of the arrow in 4. 4. Section of fructification in the direction of the arrow in 3. 

 At the right, a branch of the receptacle in median section, at the left a branch of the colu- 

 mella. 5. Median section of immature fructification. Aseroe rubra. 6. Diagram of 

 upper portion of fructification in the direction of the arrow in 7. 7. Diagram in the 

 direction of arrow in 6. 8. Median section of immature fructification. (After E. Fischer, 

 1910.) 



perhaps this results because the loose intermediate tissue in the upper 

 part of the fructification loosens from the rind tissue and is pushed 

 inwards by the swelling volva gel plates; thus in the upper part of the 

 fructification the separate volva gel plates fuse into a continuous cover. 



