134 



Mycologia 



Explanation of Plates 

 Plate 7 



Fig. 1. Primordia before fertilization, trichogyne not fully developed. 



Fig. 2. The same pair of primordia after the antheridium had been pulled 

 out of the trichogyne coil. 



Figs. 3 and 4. Same a9 Figs. 1 and 2 except less highly magnified. The 

 coiled portion of the ascogonium (trichogyne?) shows more distinctly in this 

 position than in Fig. 2. 



Figs. 5 and 8. Common types of primordia in which the antheridium is 

 circled by sterile hyphae from the stalk of the ascogonium. 



Fig. 6. Spiral type in which the trichogyne is plainly visible coiling about 

 the end of the antheridium, 



Fig. 7. Archicarp broken in two in an attempt to pull the antheridium 

 away from the trichogyne after fusion had taken place. 



Fig. 9. Short-stalked archicarp, the antheridium not visible. 



Fig. 10. Same type as shown in Fig. 9 except that the antheridium is 

 plainly visible. 



Plate 8 



Fig. 1. Hyphae bridging a dead cell and connecting two living cells. \ 



Fig. 2. Intrahyphal mycelium resembling the mycelium of a fungus parasite. 



Figs. 3 and 4. Clearly the " Durchwachsung " type of bridging hyphae. 



Figs, 5 and 6. Papulospores of Ascobolus magnificus. At the right in 

 Fig. 5 can be seen a few cells of a hypha of large diameter. Note the small 

 hyphae from which the papulospores arise. This is not always the case as 

 these spores frequently arise from hyphae of large diameter. 



Fig. 7. Papulospore arising from an " internal hypha." 



