THE ASEPTIC CULTIVATION OF MYOETOZOA. 71 



Fig. 9, — A sporangium of Stemonitis A, drawn with a camera lucida 

 X 66. 



Fig. 10. — A sporangium of Stemonitis C. X 66. 



Fig. 11. — A sporangium gotten on a stump at Heidelberg. It has not been 

 identified with any of the species described in works on Mycetozoa. 



Fig. 12. — Zoospores of Stemonitis. 12 a — h. A zoospore in the act of 

 forming a nutrient vacuole, and taking in a granule of carmine. 12 i,j, 

 showing the location of the nutrient vacuoli posteriorly. 12 /?:. A zoospore 

 with four flagella. 12 /. A zoospore of Ceratium porioides, with two 

 flagella and two nuclei. 12 m. An encysted zoospore, with a thin wall. 

 12 11, 0. Encysted zoospores, with thick walls. 



Fig. 13 shows different forms of spores of Ceratium porioides, with 

 the four nuclei and four zoospores developing from one spore. 



