102 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.3 



Chytridiales 



1. Rhizophidium carpophilum (Zopf) Fischer 



Parasitic on oospores of Achlya sp.'^ Sandy bank of a stream ("Site 

 I"). Caledonia Bay, Panama; April 26, 1939. 



A species hitherto known only from the Eastern United States, West- 

 ern Europe, and Japan. 



Blastocladiales 



2. Allomyces javanicus Kniep 



Mud from a roadside watering trough on the road from Curacas to 

 La Guaira, Venezuela; April 11, 1939. 



According to F. T. Wolf (1939), no epigynous species of Allomyces 

 have been reported from the Western Hemisphere. In connection with 

 the present record, it might be mentioned that this species has also been 

 isolated from soil from Texas, where it was found associated with 

 Blastodadiella simplex Matthews. 



The gametophyte differs from that formed by subcultures of Kniep's 

 Javanese material in the occasional formation in water cultures of extraor- 

 dinarily long, cylindrical female gametangia. 



3. Allomyces ?noniliformis Coker and Braxton 



Soil from a paddy field on the road to Pitch Lake from Port of Spain, 

 Trinidad, B.W.I. ; April 18, 1939. 



This rare species has hitherto been known only from the Eastern 

 United States (two collections) and Mexico (Wolf, 1939). 



4. Allomyces sp. indet. 



Soil from a spring on a hillside above the village of Bahia Honda, 

 Panama; March 28, 1939. 



So far, this isolate, which resembles in its sporophyte phase A. java- 

 nicus and A. arbtiscula, has failed to produce a gametophyte. It is pos- 

 sibly A. anomala Emerson, inedit., an unpublished species which, accord- 

 ing to Wolf (1939), is to include short-cycled species lacking both a 

 gametophyte and "Cystogenes" phase. 



1 Attempts are being made to obtain normal material of this fungus for pur- 

 poses of identification. 



