210 ILLINOIS ACADEMY OF SCIENCE 
Helminthisporium ravenelit. 
On Sporobolis indicus El Alto de la Bandera, 8663, Jajome 
Alto, 8404. This “smut grass” is very common throughout 
the island. 
Helminthosporium glabroides Stev. 
On Perisporium portoricense ; on Calophyllum calaba, 7489, 
Cercospora Fries. 
Cercospora violae Sacc. 
On Viola sp., Rio Piedras (Stevenson), 5125. 
Cercospora rigospora Atks. 
On Solanum nigrum, Rio Piedras, (Stevenson), 5316. 
Cercospora personata (B. & E.) E. 
On Arachis hypogaea, Rio Piedras (Stevenson), 5121. 
Cercospora nicotiana E. & E. 
On Nicotianum tobaccum, Bayamon (Stevenson), 5517. 
Cercospora citrullina Cke. 
On Citrullus vulgaris, Pueblo Viejo (Stevenson), 5446. 
Cercospora hurae sp. nov. 
Spots circular or sometimes angular by venous limitation, 
2x0.5-1 cm. in diameter, ashen in center, purplish border, with 
numerous concentric lines marking the dead leaf tissue visible 
equally from both sides of the leaves. Conidiophores amphi- 
genous but much more abundant below, emerging from the 
stomata in small or large clusters, straw-colored about 35 yu 
long, geniculate. Conidia linear, many-septate, 50-85x3-4 y, 
straw colored, obtuse. 
On Hura crepitans, Mayaguez, 478, 5830 (type), 70, Afiasco 
3594. 
Cercospora ricinella S. & B. 
On Ricinus sps. Jayuya, 5973, Yauco, 3238, Pefiuelas, 4889, 
Utuado, 6553, Coamo, 125, 60, 84. 
Cercospora biformis Petch. 
