SAPROLEGNIALES 849 



disappearing; in some species sporangia of Achlya type also present; 

 spores very variable in size and shape in the same culture, larger ones 

 multinucleate, encysting in position except in the achlyoid type, and 

 only slowly separating after the disintegration of the sporangial wall; 

 after encystment under usual conditions either emerging and swimming 

 once (dicystic and monoplanetic) or not swimming, or some swimming 

 and some not, depending on the species (in all but one species they have 

 been induced to swim by special treatment). Gemmae present or 

 wanting. Oogonia small, with a single eccentric egg. Antheridia present 

 or wanting, androgynous or diclinous" (Coker and Matthews, 1937). 

 Type species: Brevilegnia subclavata Couch. 



TAXA NOT IN COKER (1923) OR COKER AND MATTHEWS (1937) 1 



Brevilegnia crassa Rossy-Valderrama 

 J. Elisha Mitchell Sci. Soc, 72: 130, figs. 1-13. 1956 



Brevilegnia irregularis Rossy-Valderrama 

 J. Elisha Mitchell Sci. Soc, 72: 133, figs. 14-22. 1956' 



Brevilegnia longicaulis Johnson 

 Mycologia, 42: 244. fig. 1. 1950 



Brevilegnia megasperma var. brevicaulis Rossy-Valderrama 

 J. Elisha Mitchell Sci. Soc, 72: 133, figs. 23-29. 1956 



Brevilegnia minutandra Hohnk 



Veroff. Inst. Meeresforsch. Bremerhaven, 1: 77, pi. 13. 1952 



Brevilegnia parvispora Hohnk 

 Veroff. Inst. Meeresforsch. Bremerhaven, 1 : 67, pi. 9. 1952 



Brevilegnia variabilis Indoh 

 Mag. Nat. History, Tokyo, 38: 87, fig. 1. 1941 (In Japanese.) 

 1 See also B. globosa Ziegler in Mycologia, 50: 405, 1958. 



