CHYTRIDIALES 543 



distance of 400 [x and becoming thick-walled with age. Resting spores 

 hyaline, smooth, oval, slightly elongate, 15-18 x 20-25 [X, with numer- 

 ous angular refractive bodies; germination unknown" (Karling, loc. 

 cit.). 



Saprophytic on cellulosic substrata, in soil and water, United States. 



No swarming of the zoospores in a vesicle was noted here. 



Chytriomyces stellatus Karling 

 Bull. Torrey Bot. Club, 74: 335. 1947 



"Sporangia hyaline, smooth or with 1-6 short, solid, triangular pegs 

 or spines, spherical, 9-50 fx, oval, broadly pyriform, 8-35 x 10-45 ;x, 

 narrowly pyriform, 6-20 x 14-38 [x, bean-shaped, anatropous or slight- 

 ly angular with 1-3 exit papillae or long, 3-7 x 10-50 [x, necks; oper- 

 culum saucer-shaped or slightly apiculate, 4-7 ;x diam. Zoospores 

 oval, 3.5-4 x 4.5-5 [x, with a small, 1.5-2.0 u, diam. hyaline refractive 

 globule; flagellum 25-30 jx long. Apophysis conspicuous, spherical, 

 4-18 [x, oval, 4-8 x 6-14 [x, broadly fusiform or slightly angular. 

 Rhizoids arising from the base or sides of apophysis, finely branched. 

 Resting spores hyaline, [stellate], apophysate, spherical, 9-26 jx, oval. 

 10-14 x 15-22 [x, or slightly angular with few to numerous solid, short 

 blunt or elongate, pointed, and rarely bifurcate pegs or spines, rarely 

 smooth; content hyaline with one large, up to 10 ;x in diam., or several 

 smaller, refractive globules, emerging through a pore in the wall and 

 forming a superficial zoosporangium during germination" (Karling, loc. 

 cit.). 



Saprophytic on chitinous substrata, in fresh water and muck soil, 

 Karling (loc. cit.), Brazil; chitin, from fresh water and moist soil, 

 Karling (1948c: 509), United States. 



The species has not as yet been figured. 



Chytriomyces tabellariae (C. Schroter) Canter 



Trans. Brit. Mycol. Soc, 32: 16, figs. 1, 2. 1949 

 (Fig. 11 I, p. 110) 



Phlyctidium tabellariae C. Schroter, Neujahrblatt Naturf. Gesell. Zurich, 

 99: Anmerk. 3, pi. 1, fig. 48. 1897. 



