1 146 AQUATIC PHYCOMYCETES 



Rabenhorst, L. 1868. Flora Europaea algarum. . ., Vol. 3. xx + 461 pp. Leipzig. 



1864-68. 

 1871. Uebersicht der von Herrn Prof. Dr. Haussknecht im Orient gesammel- 



ten Kryptogamen. Hedwigia, 10: 17-27. 

 Raciborski, M. 1900. Parasitische Algen und Pilze Java's. 1 : 1-39. Batavia, Java. 

 Radais, M. 1898. Sur l'appareil vegetatif des Saprolegniees. Bull. Soc. Mycol. 



France, 14: 144-148. 

 Raitschenko, A. A. 1902. Ueber eine Chytridiacee: R. sphaerocarpum (Zopf) 



Fischer. Bull. Jardin Imper. Bot. St. Petersb., 2: 124, 8 figs. 

 Ramsbottom, J. 1913. Some recent work on the cytology of fungus reproduction. 



II. Mycol. Centralbl., 3 (5): 221-234. 

 1914. Recent published results on the cytology of fungus reproduction (1913). 



Trans. Brit. Mycol. Soc, 4:249-291. 



1915a. The generic name Protascus. Ibid., 5: 143-144. 



1915b. A list of the British Phycomycetes, with a key to the genera. Ibid., 



5:304-317. 



1915c. Notes on the list of British Phycomycetes. Ibid., 5: 318-323. 



1916. Some notes on the history of the classification of the Phycomycetes. 



Ibid., 5:324-350. 



1931. Aquatic fungi. J. Quekett Microscope Club, 16: 151-166. 



Raper, J. R. 1936. Heterothallism and sterility in Achlya and observations on 

 the cytology of Achlya bisexualis. J. Elisha Mitchell Sci. Soc, 52: 274-289, 

 pis. 22-23. 



1939a. Role of hormones in the sexual reaction of heterothallic achlyas. 



Science, 89:321-322. 



— — 1939b. Sexual hormones in Achlya. I. Indicative evidence for a hormonal 

 co-ordinating mechanism. Amer. J. Bot., 26: 639-650, figs. 1-27. 



1940a. Sexual hormones in Achlya. II. Distance reactions, conclusive evi- 

 dence for a hormonal coordinating mechanism. Ibid., 27: 162-173, 14 figs. 



1940b. Sexuality in Achlya ambisexualis. Mycologia, 32: 710-727, 4 figs. 



1942a. Sexual hormones in Achlya. III. Hormone A and the initial male 



reaction. Amer. J. Bot., 29: 159-166, 6 figs. 



1942b. Sexual hormones in Achlya. V. Hormone A', a male-secreted 



augmenter or activator of hormone A. Proc Nat. Acad. Sci., 28: 509-516, 

 2 figs. 



- 1949. Recent findings on sexual hormones in Achlya. Amer. J. Bot., 36 

 (Suppl. No. 10): 814. (Abstract.) 



1950a. Sexual hormones in Achlya. VI. The hormones of the A-complex. 

 Proc. Nat. Acad. Sci., 36: 524-533, 5 figs. 



- 1950b. Sexual hormones in Achlya. VII. The hormonal mechanism in ho- 

 mothallic species. Bot. Gaz., 112: 1-24, 11 figs. 



