BLASTOCLADIALES 655 



smooth except for a short papilla apparently always present and always 

 directed towards emergence pore of zoosporangium, wall about 2-3 a 

 thick. Resting sporangium germinating by the irregular cracking of the 

 outer thicker wall and the emergence of a long or short tube through 

 which the zoospores emerge as in the zoosporangium. Zoospores in 

 resting sporangia as in zoosporangia" (Couch, 1945a). 



In exuviae of Gordius spp., Villot (1874, pi. 6, figs. 13-18), Anguillulae, 

 Nitella, Dangeard (1884-85b: 126; 1886a: 307, pi. 14, figs. 12-16), 

 France; Anguillulae, Sorokin (loc. cit.\ 1883:39, fig. 50), European 

 Russia, Asiatic Russia; Anguillulae, Constantineanu (1901:389, 

 fig. 84), Rumania; nematodes, Seurat (1920: 189) (?), Algeria; eggs 

 of Fasciola hepatica, J. B. Butler and Buckley (1927: 497, pi. 23-26), 

 E. J. Butler (1928: 817, figs. 1-19), J. B. Butler and Humphries (1932: 

 301, pi. 13-18), Ireland; helminth and mite eggs, Buckley and Clapham 

 (1929: l,pl. 1, figs. 1-21), Great Britain; rotifers and nematodes, Kar- 

 ling (1946b: 10, pi. 2, figs. 48-53), Brazil; eggs of microscopic animals, 

 snake-skin bait, soil, Sparrow (1952b: 71), Cuba; roots of Panicum and 

 sterilized green algae, characeans, liverworts, eggs of rotifers, infusoria. 

 insects, and so forth, Karling (1934a: 528, figs. 1-3, pi. 57-58); Karling 

 (1942c: 620), sheep liver-fluke eggs, Couch {op. cit.: 173), eggs of an 

 undetermined microscopic animal, snake-skin bait. Sparrow (1952d: 

 769), United States. 



The fungus in eggs of Nais described by Carter (1858 : 99, pi. 4, fig.45) 

 probably belongs here. 



Couch (1945a) critically evaluated the fungi referred to this species 

 and he gives sufficient latitude in his description to accommodate all 

 authentic records. Seurat's record is retained here only tentatively since 

 it was not considered by Couch. 



Catenaria anguillulae has been cultivated on various agar media 

 containing extracts of liver, fluke ova, or the like. Couch carried it in 

 stock culture on 0.3 per cent "Difco" meat extract with 1.5 per cent 

 agar. It has frequently been isolated from soil by the use of snake-skin 

 bait. 



Catenaria allomycis Couch 



Mycologia, 37: 171, figs. 1-41. 1945 



(Fig. 44 A-F, p. 651) 



"Thallus parasitic in the threads of Allomyces and Blastocladiella; 



