Classification, 157 



cyliudrical form and rounded at both ends, 6-13 x 

 3-5 /x, with a single cilium, protoplasm with oil drops ; 

 zygospores formed by the conjugation of two cells, 

 globose or ellipsoid, 20-30 /x diameter, epispore 

 thick, yellow brown, smooth or minutely aculeolate; 

 on germination these resting-spores produce zoo- 

 gonidia. 



Foliji^liagus euglense, Schroeter, Kryht, Fl. Schles. 

 p, 196 ; Sacc. Syll. vii. 1, no. 1050. 



Chytridium euglense, Bail. Mykol. Bericht, 1885 

 Parasitic in Euglena viridis. Rare. 



Reessia, Fisch. 



Zoosporangia furnished with a long beak, situated 

 within the cells of the host ; zoogonidia conjugating in 

 pairs and forming restiug-spores which on germination 

 produce zoospores. 



Beessia, Fischer, Beitr. Kennt. Chytrid.; Sacc. 

 Syll. vii. 1, p. 304. 



Distinguished from Chyfridium by the entire 

 absence of rhizoids springing from the zoosporangia. 

 Closely allied to Ol^ndium, if indeed generically dis- 

 tinct. I 



Beessia amsehoidea^ Fisch. 



Zoosporangia globose, 25-30 fi diametei, beak 10- 

 15 /x long, protruding from the cell of the host- 

 plant in which the zoosporangium is situated; 

 zoogonidia broadly pyriform, uniciliate, conjugating 

 in pairs and becoming encysted to form a resting- 

 spore; resting-spores globose, brownish, 12-15 /j, 

 diameter. 



