1926J 



BURT — THELEPHORACEAE OF NORTH AMERICA. XV 295 



over the whole under surface of the leaf from margm to margin. 

 Fruiting specimens of this fungus have been available for study 

 from only two localities, but these specimens agree in the char- 

 acters stated above. 



Specimens examined : 

 North Carolina: Horseshoe, J. G. Hall, comm. by F. L. Stevens, 

 sclerotial stage on pear twigs; Mt. Airy, F. C. Reimer, comm. by 

 F. L. Stevens, fertile stage on pear leaves. 

 Georgia: A. L. Quaintance, comm. by F. S. Earle, sclerotial stage 



on apple twigs. 

 Florida: C G. Lloyd, sclerotial stage on pear twigs. 

 Texas: Dickson, F. W. Mally, comm. by U. S. Dept. Agr., sclero- 

 tial stage on pear twigs. 

 Trinidad: Diego Martei, J. B. Rorer, fertile stage on leaves of 

 Codiaeum variegatum (in Mo. Bot. Gard. Herb., 44771); Petit 

 Valley, /. B. Rorer, sclerotial and fruiting stages on leafy twigs 

 of Codiaeum variegatum (in Mo. Bot. Gard. Herb., 11960, 19786, 

 19810, and 20062). 



102. C. vagum Berk. & Curtis, Grevillea 1 : 179. 1873; Sacc. 

 Syll. Fung. 6: 616. 1888; Massee, Linn. Soc. Bot. Jour. 27: 148. 

 1890; Duggar, Mo. Bot. Gard. Ann. 2: 445. 1915; Peltier, Univ. 

 111. Agr. Exp. Sta. Bui. 189: 285. 1915; Burt, Mo. Bot. Gard. 

 Ann. 5: 128. text f. 3. 1918; Coker, Elisha Mitchell Scientif. 

 Soc. Jour. 36: 173. pi 33, f. 9, 10. 1921. 



Cortidum vagum Berk. & Curtis var. Solani Burt in Rolfs, 

 Science N. S. 18: 729. 1903; Colo. Agr. Exp. Sta. Bui. 91 : 1-20. 

 pi. 1-5. 1904. — Hypochnus Solani Prill. & Del. Soc. Myc. Fr. 

 Bui. 7: 220. text f. 1891; Sacc. Syll. Fung. 11: 130. 1895.— 

 Cortidum Solani Prill. & Del. in Bourdot & Galzin, Soc. Myc. Fr. 

 Bui. 27: 248. 1911. — Cortidum hotryosum Bresadola, Ann. Myc. 

 1: 99. 1903; Sacc. Syll. Fung. 17: 173. 1905; Bourdot & 

 Galzin, Soc. Myc. Fr. Bui. 27: 248. 1911. — Rhizoctonia Solani 

 Kiihn, Krankheiten d. Kulturgewachse, 224. 1858; Duggar, Mo. 

 Bot. Gard. Ann. 2: 424. 1915. 



Type: in Kew Herb, and in Curtis Herb. 



Vegetative mycelium saprophytic in the soil and in wood in con- 

 tact with the ground, and parasitic as the Rhizoctonia Solani stage 



