Phylum:Oomycota >> Class: Oomycetes >>  Order: Saprolegniales 
   
 
 BCRC Number NO BCRC Number!  
   
 Scientific Name: Achlya caroliniana
 
   
   
 Author:

Achlya caroliniana Coker. Bot. Gaz. 50; 381. 1910.

   
 
 
 
 
 Description: Gemmae abundant, filiform. Zoosporangia moderately abundant; fusiform; renewed sympodially; frequently furnished with one to several lateral discharge pores or tubes in addition to the terminal orifice. Zoospore discharge achlyoid. Oogonia abundant; lateral, frequently intercalary; spherical, frequently doliform and with apiculate; 55-30 μ in diameter, predominantly 35-45 μ. Oogonia abundant; lateral. Oogonial wall usually unpitted; smooth, occasionally sparely ornamented with papillate projections. Oogonial stalk 2 times the diameter of the oogonium. Antheridial branches usually lacking, frequently with hypogynal branch. Oospheres generally maturing. Oospores eccentric; spherical or ellipsoidal; not filling the oogonium. Oospores 1-8 in number, generally 1-4; 15-32.5 μ in diameter, predominantly 20μ.
 
 
 
 
 
 Specimens:

Collected four times from soil samples (Apr. 4, 1974. National Taiwan University Campus, Taipei).

 
 
 
 Habitat: Soil and water
 
 
 
 Distribution:

Taiwan

 
 
 
 References:

Coker WC. 1923; Couch JN, 1932.

   
   
   
 Provided:

T. S. Chiou and H. S. Chang

 
 
 Note: In our isolate the oogonium usually has no antheridial branch, frequently with hypogynal cell growing into the oogonium, the fertilization behavior is like that of Achlya hypogyna.