436 PLANT DISEASES 



Cladosporium citri, Penzig. Sporophores tufted, erect, 

 brown, branched, septate, 30-75 X 2-4 /x; conidia fusiform, 

 dusky, usually continuous, occasionally i-3-septate, 8-9 X 

 2-5-4 p. 



Cladosporium elegans, Penzig, Mich., ii. p. 471. Tufts 

 epiphyllous, gregarious, distinct, seated on arid spots; 

 conidiophores erect, fasciculate, simple, sparingly septate, 

 distinctly sinuous, brown, 1 60-200 X 5-6 /*; conidia apical 

 and lateral, continuous or i-septate, elliptic-oblong, 

 epispore delicately granulated, pale brown or yellowish, 

 18-20x5-6 p. 



Cladosporium epiphyllum, Mart., .>/., p. 351. Tufts 

 arranged in dark olive patches, which are often large and 

 dense ; hyphae at first erect, then more or less flaccid, 

 branched and interwoven, pale olive ; conidia very abun- 

 dant, pale olive, at first continuous then i -septate; pro- 

 duced in short chains, which sometimes remain attached, 

 and then the conidium appears large and more than 

 i -septate, averaging 10-12X4-6 p. 



Cladosporium carpophilum, Thiim., Fung. Pomic., p. 13. 

 Spots orbicular, often confluent, blackish-green, forming 

 circles ; hyphae short, erect, continuous, slightly branched, 

 slender, fuscous; conidia ovate, ends obtuse, continuous 

 or rarely i-septate, 20X5 /*, pale brown. 



Helminthosporium, Link. Conidiophores almost simple, 

 few septate, often nodulose, oliveaceous, scattered or 

 usually fasciculate ; conidia apical, elongated, cylindrical, 

 clavate, fusiform, etc., 3-many-septate, epispore smooth, 

 olive. 



Helminthosporium teres, Sacc., Fung. ItaL, tab. 833; 

 Sacc., Syll., iv. p. 412. Spots oblong, on both surfaces, 



