PLATE 23 



Gomontia caudata S. and G. 



Fig. 1. Two pieces of filaments. X 400. 



Fig. 2. ad, different stages and forms of "sporangia." X 400. 



Internoretia Fryeana S. and G. 



Fig. 3. A surface view of the host plant showing the method of perme- 

 ation and branching of a few terminal filaments. X 375. 



Fig. 4. A stage slightly in advance of figure 3 showing cell divisions in 

 planes parallel to the long diameter of the cells. X 375. 



Fig. 5. A stage in development nearing maturity. X 375. 



Fig. 6. A cross-section of the host cutting the filaments of Internoretia at 

 right angles to their long diameter. X 375. 



Entocladia cingens S. and G. 



Fig. 7. A plant growing in the membrane of Chaetomorpha californica and 

 nearing maturity. X 250. 



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