CHYTRIDIALES 381 



wall thick (3-10 [x), hyaline, layered, inner layer at germination giving 

 marked cellulose reaction ; functioning as prosporangium in germination 

 to give rise through a narrow pore to an extramatrical evanescent zoo- 

 sporangium, or through a wide opening to a sac-like zoosporangium" 

 (Haskins, he. cit.). 



Saprophytic in various grasses, in wheat, oat, and maize leaves, in 

 regenerated cellulose film, filter paper, and lens paper submerged in 

 water, Haskins (1939), Canada; Haskins (1946), Great Britain. 



We are inclined to agree with Karling (1947b: 66) that Haskins' 

 fungus is in reality a species of Rhizophlyctis ("Karlingia"). 



RECENTLY DESCRIBED TAXON 1 



Entophlyctis confervae-glomeratae (Cienkowski) Sparrow 

 f. marina Kobayashi and Ookubo 



Bull. Nat. Sci. Mus. (Tokyo), (N.S.), 1 (2), No. 35: 67, fig. 6. 1954 



"Thallus endobiotic, monocentric, composed of a zoosporangium 

 and well-developed rhizoids. Zoosporangium subglobose, ovoid, pyri- 

 form, or frequently deformed, 5-20 u, in diameter, with an apical 

 discharge tube which is narrow, cylindric, varying in length, attenuated, 

 scarcely protruding on the wall of host cell. Rhizoids with 1-3 main 

 axes, arising from one or two opposite places on the lower side of 

 zoosporangium, containing few oil-like globules. Zoosporangial proto- 

 plasm discharging through tube as a mass leaving one or several oil-like 

 globules, and forming a sphaerical vesicle just outside the host cell, and 

 after a resting period, producing many zoospores which swim away 

 separately, leaving evanescent membrane of vesicle. Zoospores globose, 

 3-5 [ji in diameter, hyaline. Resting spore endobiotic, globose, about 

 20 u, in diameter, pale brown, somewhat thick-walled, slightly echin- 

 ulate with 2-5 spines, with a small globose apophysis and extending 

 rhizoid" (Kobayashi and Ookubo, he. cit.). 



On Cladophora japonica, Japan. 



If we have interpreted correctly the development and zoospore, 



1 Not included in the key. 



