284 
Transactions of the Royal Society of South 'Africa. 
Podosphaera leucotricha (Ell. and Ev.), Salmon Pirus mains. Nov. 
1921. 
Sphaerotheca pannosa (Wallr.), Lev., Rosa sp. Nov. 1921. 
Uncinnla necator (Schwein.), Burr, Vitis vinifera. 
Hypocreaceae. 
Claviceps paspali, S. & H., Paspalnm. Feb. 1922. 
Claviceps sp., Pennisetnm macrnornm. 
Dothidiaceae. 
Phyllachora cynodontis (Sacc), Mess., Cynoclon dactylon. Feb.' 1922. 
Phyllachora melianthi (Thuem.), Sacc, Melianthus major. Oct. 1922. 
Phyllachora sp., Pennisetnm macrnorum. March 1922. 
Coryneliaceae. 
Corynelia nberata, Ach., Podocarpns. Oct. 1921. 
Mycosphaerellaceae . 
Mycosphaerella fragariae (Tnl.), Linn., Fragaria vesca. 
Pleosporaceae. 
Ventnria inaeqnalis (Cke.), Aderh. (Fusicladium stage), Pirus malus. 
Venturia pirina, Aderh. (Fusicladium stage), Pirus communis. 
Melanconidaceae . 
Calospora arausiaca (Fab.), Sacc, Quercus sp. 
Xylariaceae. 
Hypoxylon sp. Old wood. A. V. Duthie. 
Xylaria sp. Old wood. A. V. Duthie. 
Basidiomycetes. 
Ustilaginaceae. 
Ustilago avenae (Pers.), Jens., Avena sativa. Nov. 1921. 
Ustilago bromivora (Tul.), F. v. M., Bromus unioloides. Oct. 1921. 
Ustilago hordei (Pers.), K. & S., Hordeum vulgare. Sept. 1921. 
Ustilago maydis (D. C), Tul., Zea Mays. 
Ustilago nuda (Jens.), K. & S., Hordeum vulgare. Oct. 1921. 
Tilletiaceae. 
Tilletia laevis, Ruhn., Triticum vulgare. 
Urocystis tritici (Bjerk.), Wint., Triticum vulgare. Oct. 1921. 
Melampsoraceae . 
Melampsora tremulae, Tul., Populus sp. Sept. 1921. 
