CHYTR/DFALES 



571 



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Fig. 34. Endochytrium and Nephrochytrium 

 A-E. Endochytrium ramosum Sparrow in Cladophora sp.: A-D, stages in 

 discharge out into the water of zoospores of endobiotic sporangium; E, 

 three plants within alga, bearing mature zoosporangia. E-G. Nephrochytrium 

 appendiculatum Karling in Chara and Nitella: F, portion of thallus bearing 

 mature sporangium ; latter is connected by a short isthmus to a long apoph- 

 ysis; persistent thick-walled case of zoospore is attached to apophysis 

 by a short narrow tube ; G, resting spore of same species. H. Nephrochytrium 

 stellatum Couch, stellate resting spore. 



(A-E, Sparrow, 1933a; E-G, Karling, 1938a; H, Couch, 1938a) 



