436 PLANT DISEASES 



Cladosporium citri, Penzig. — Sporophores tufted, erect, 

 brown, branched, septate, 30-75 X 2-4 /i; conidia fusiforni, 

 dusky, usually continuous, occasionally 1-3-septate, 8-9 X 

 2-5-4 /^. 



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

 epiphyllous, gregarious, distinct, seated on arid spots; 

 conidiophores erect, fasciculate, simple, sparingly septate, 

 distinctly sinuous, brown, 160-200 x 5-6 /x; conidia apical 

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

 eplspore delicately granulated, pale brown or yellowish, 

 18-20x5-6 /i. 



Cladosporium epiphyllum, Mart., ErL, 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 10-12 X 4-6 /u.. 



Cladosporium carpophiltun, 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, 20 X 5 y"., 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, 



