72 



THE LOWER FUNGI— PHYCOMYCETES 



1. Sphaerita Dangeard (Ann. Sci. Nat. 7 sqr. 6o«., 4:277, 1886). 



(See also Le Botaniste, 1 : 46, pi 2-S; 4 : 234, fig. 7-8, and 



Bui. Soc. Bot. France, 74 : 472, 1927.) 



The genus was founded on S. endogena Dang, parasitic in 



Euglena and other Protozoa. As described by Dangeard the 



sporangium is clhpsoidal (Fig. 10, a, 6) and opens by a pore. 



Fig. 10. — Sphaerita endogena Dangeard in Euglena. (a) Young swarmsporan- 

 gium. (h) Germinating swarmsporangium. (c, c) Spiny resting sporangium. 

 (d) Fusiform swarmsporangium. (a, b, c, e, after Dangeard 1880; d, after Ser- 

 binow 1907.) 



In a later account by Serbinow (Scripta Hort. Bot. Petrop., 24 : 154, 

 pi. 5, 1907) it is pictured as fusiform, and is stated to have a 

 short exit papilla at one or both ends (Fig. 10, d). Another 

 species S. trachelomonadis Skvortzow (1927: 205) has been 

 described from China in Trachelomonas. 



2. Olpidiaster Pascher {Beih. Bot. Centralhl, 35^ : 578, 1917). 

 syn. Asterocystis DeWildeman (Ann. Soc. Beige Micros., 

 17: 21, 1893); antedated by Asterocystis Gobi (1879), an 

 algal genus. 



