56 MISC. PUBLICATION 499, U. S. DEPT. OF AGRICULTURE 
Pyrenochaeta erysimi Hollés, Mus. Nat. Hungarici Ann. 4: 341. 
1906. Sacce. Syll. Fung. 22: 931. 1913. 
Sclerochaeta erysimi (Hollés) Petr., Ann. Mycol. 19: 71. 1921. 
Pyrenochaeta penicillata (Fckl.) Sacc., Syll. Fung. 3: 220. 1884. 
Phoma penicillatum Fckl., Symb. Mycol. p. 378. 1869-70. 
Sclerochaeta penicillata (Fckl.) Hoehn., Hedwigia 59: 240. 1917. 
(See 64, 316, 352, 1008, 1338, 1484, 1629.) 
Pyrenopeziza atrata (Pers. ex Fr.) Fckl., Symb. Mycol., p. 294. 
1869-70. Sacc. Syll. Fung. 8: 354. 1889. 
Mollisia atrata (Pers.) Karst., Bidr. till. Kann. Finlands Natur. 
Och Folk. 19 (Mycol. Fenn. 1.) : 200. 1871. 
Peziza atrata Pers., Syn. Meth. Fung., p. 669. 1801. Fr. Syst. 
Mycol. 2: 148. 1822. 
(See 863.) 
Pyrenopeziza compressula Rehm in Rab., Kryptogam. F1., ed. 2, 
1 (3) : 618. 1896. Sacc. Syll. Fung. 11: 409. 1895. 
Excipula compressula (Rehm) Hoehn., Akad. der Wiss. Wien, 
Math.-Nat. K1., Sitzber. (Abt. 1) 127: 576. 1918. 
(See 863.) 
Pyrenopeziza distinguenda Starb., Bot. Notiser 1898: 206. 1898. 
Sacc. Syll. Fung. 16: 733. 1902. 
(See 421, 623, 693, 1258.) 
Pyrenopeziza moutonii Rehm f. trifolii Hoehn. 1. litt. 
(See 7491.) 
Pyrenophora calvescens (Fr.) Sacc., Syll. Fung. 2: 279. 1883. 
Sphaeria calvescens Fr., Scler. Suec. Exs, No. 401. 1819-34. 
(See 160.) 
Pyrenophora oligotricha (Niessl) Berl. and Vogl., Add. Syll., p. 
177. 1886. Sacc. Syll. Fung. 9: 898. 1891. 
Pleospora oligotricha Niessl, Hedwigia 24 : 236. 1885. 
(See 693, 863, 906.) 
Pyrenophora meliloti Ranoievich, Ann. Univ. Grenoble 30: 374. 
1918. Soc. Mycol. de France, Bul. Trimest. 35: 15. 1919. Sace. 
Syll. Fung. 24: 1044, 1928, 
Pythium debaryanum Hesse, Pyth. debar., ein endophyt. Schmarotz., 
p. 34.1874. Sacc. Syll. Fung. 7: 271. 1888. 
(See 200, 227, 236, 275, 530, 657, 693, 763, 783, 795, 855, 862, 882, 
889, 926, 927, 959, 1035, 1112, 1245, 1290, 1410, 1484, 1625.) 
Pythium irregulare Buisman., Phytopath. Lab. “Willie Commelin. 
Scholten,” Meded. 11:1 (figs. 9-11). 1927. 
(See 889.) 
Pythium mamillatum Meurs, Wortelrot verroorzaakt door Schim- 
mels, etc. Dissert. Baarn, figs. 1-38. 1928. 
(See 889.) 
Pythium pulchrum Mind. in Falck., Mykol. Untersuch. u. Ber. 2 (6) : 
297. 1916. Sacc. Syll. Fung. 24: 1332. 1928. 
(See 227.) 
Pythium rostratum Butl., India Dept. Agr. Mem. 1 (5): 84. pl. 
5, figs. 11-22. 1907. Sacc. Syll. Fung. 21: 856. 1912. 
(See 227.) 
Pythium splendens H. Braun, Jour. Agr. Res. 30: 1061. 1925. 
(See 227.) | 
