CHYTRIDIALES 375 



Minden {he. cit.) considers Entophlyctis voucher iae (Fisch) Fischer 

 synonymous with Schenk's species. The presence of a colored globule 

 in the zoospore of Schenk's fungus (not mentioned by Minden) is in 

 itself sufficient to distinguish the two. Schenk's species bears a close 

 resemblance to Cladochytrium nowakowskii (see C. replication, p. 464), 

 and it is not impossible that when the sporangia and rhizoids were 

 crowded in the algal cell the turbinate cells were overlooked. 



Though the rhizoids are said by Schenk to emerge from more than 

 one place on the sporangium, all his figures except the immature stage 

 in Figure 10 show a definite basal main axis. His statement that the 

 flagellum of the zoospore is anterior during motility is probably 

 erroneous, since even with the best modern optical equipment this 

 structure can rarely be detected while rapidly vibrating. 



Schenk believed his fungus was identical with "Rhizidium" confervae 

 glomeraiae Cienkowski, differing only in the lack of amoeboid motion 

 by the spores, their failure to form a motionless group at the orifice of 

 the sporangium, and their not entering as a whole into the algal cell 

 (probably an erroneous observation by Cienkowski). Cienkowski's 

 fungus appears to form predominantly spherical rather than ovoid 

 sporangia, the discharge tubes never extend an appreciable distance 

 outside the algal wall, and the globule of the zoospore is colorless. 



The species is reported as occurring in Bulgaria, in Vaucheria sp., 

 by Valkanov (1931a: 363), and in Hungary by Domjan (1936: 46, pi. 1, 

 fig. 137) (see also Moesz, 1938:71). Neither Valkanov nor Domjan 

 mentions a colored globule in the zoospore. A fungus closely resembling 

 Schenk's but with colorless globules has been found in Great Britain 

 (Sparrow, 1936a) in Vaucheria, see Figure 22 E, p. 371. 



Entophlyctis texana Karling 



Torreya, 41 : 106. 1941 



Sporangium variable, subspherical, 18-45 jo. in diameter, pyriform, 

 10-22 by 20-40 u., elongate, truncate, 15-25 by 35-60 a, lobulate or 

 irregular, with one to several discharge tubes of variable length and 

 diameter, with golden-red globules; zoospores spherical, 4-4.5 [L in 

 diameter, with a conspicuous golden-red highly refractive globule and 



