FUSARIUM. 479 



dichotomously branched ; conidia produced at the tips of the 

 branches, fusiform, slightly curved, acute at both ends, 3-5- 

 septate, rosy-hyaline, 28-40 X 4-6 p.. 



Fusarium sarcochroum, Sacc., Syll., iv. n. 3281. 



Selenosporium sarcochroum^ Desm., Ann. Sci. Nat., 1850, xiv. 

 p. 111. 



On the bark of branches. 



Pusarium pyrochroum. Sacc. 



Sporodochia spot-like or minute, erumpent, remaining 

 partly covered, pale ochraceous, flame-colour when dry, 

 -^-| mm. across ; conidia produced at the tips of verticillately 

 branched, curved conidiophores, 35-40 x 3-5 /x, spuriously 

 3-5-septate, acute, rosy-hyaline. 



Fusarium pyrochroum, Sacc., Syll., iv. n. 3282. 



Selenosporium pyrocliroum, l)esni., Ann. Sci. Nat., 1 850, xiv. 

 p. 111. 



On dead branches. 



Fusarium vinosum. Mass. 



Sporodochia minute, gregarious, erumpent, deep vinous 

 brown, often becoming confluent and forming a crust, some- 

 what gelatinous ; conidia fusoid, arcuate, acuminate at the 

 ends, 37 x 40 X 4-5 p., 5-septate, borne on oppositely 

 branched conidiophores. 



On decaying beech mast. 



Fusarium viticola. Thiim. 



Sporodochia solitary or scattered, sometimes confluent, 

 large, elevated, originating under the epidermis, which is at 

 length perforated, slightly rugulose, shining, almost flesh- 

 colour ; conidia exactly fusiform, slightly curved, sometimes 

 straight, rather acute at both ends, 3-5-septate, not con- 

 stricted at the septa, subnucleate or granular within, 

 36-40 X 4 p., hyaline. 



Fusarium viticola, Thiim, Weinst., p. 52, t. iii. f. 3; Sacc., 

 Syll., iv. n. 1288. 



On dry vine twigs. 



Fusarium tubercularioides. Sacc. 

 Erumpent, minute, purple; stroma fleshy, ochraceous; 

 conidia 45-50 p. long, fusiform, curved, very acute at both 

 ends, 6-septate, white. 



