56 JOURNAL OF THE 



pluriseptate, dilutely yellowish, 25 — 120 X 2,5 — 3. This 

 is probably a young stage, since in N. A. F. 1757 the 

 hyphie are aniphigenous and well developed. 



On leaves oi Elephantopus toijienlosiis^ i^79i Auburn, 

 June 30, 1890, Atkinson. 



46. CercOvSpora atramaculans E. & E. Spots 

 amphigenous, suborbicular, 4 — 8 ww., light brown to 

 nearly black. Hypha^ aniphigenous, fasciculate, tufts dis- 

 tributed thickly over the spot, divergent, sometimes 

 branched, subflexuous, irregular in outline, denticulate, 

 septate and guttulate, olive fuliginous with reddish tinge 

 in age, 30 — 80 X 4. Conidia very narrowly tereti-fusoid, 

 or narrowly lanceolate, 3-10 septate, guttulate, faintly 

 fuliginous, 20 — 70 % 3, 5 — 4. 



On leaves of Cassia Tora, 2129, Auburn, September 

 10, 1891, Atkinson. 



47. Cercospora cruenta Sacc. Spots orbicular 

 mottled by blood-red splotches. Hypha? amphigenous, 

 fasciculate, tufts distributed over spot, short or quite long, 

 faintly olive fuliginous, not reddish brown when long, as 

 in C. Dolichi, septate, flexuous, simple or branched, 40— 

 150 X 4. Conidia faintly olive, frequently guttulate, 

 septate, 40—120 X 4. 



On leaves of Dolichos sinensis^ 1238, July 18, 1890; 

 Phaseolus (cultivated), 1236, July 18, 1890, Auburn, 

 Atkinson. 



48. Cercospora viticola (Ces.) Sacc. Spots sub- 

 orbicular with indefinite ragged border, blackish above or 

 brown in center with black border, light brown below, 

 affected parts of leaf outside of the spots frequently 

 changing to yellow. Hyph^e amphigenous, parallel and 

 densely fasciculate in compact column 100 — 300 long, indi- 

 vidual hyphie septate, free for short distance at distal end 

 where sometimes subclavate, abruptly subflexuous, jagged 

 and denticulate wheuhavingborne many conidia, sometimes 



