412 FUNGUS-FLOE A. 



obtuse at tlie ends, 9-12-septate, 60 X 10-11, produced at tlie 

 tips of terminal branchlets, brown, terminal cell pale. 



Helmint}iosj)orium rhopaloides, Fres., Beitr. Myk., p. 50, t. 

 vi., f. 15-21 ; Sacc, SylL, iv. n. 2013. 



On rotten stems of Dianthus, Brassica, &c. 



BRACHYSPORIUM. Sacc. (fig. 16, p. 397.) 



Hyphae rigid, subsimple, brown ; conidia ovoid or piri- 

 form, brown, 2- or few-septate, brown. Often growing on 

 wood. 



Brachysporium, Sacc, SylL, iv. p. 423. 



Hehmnt/wspormm, of authors (in part). 



Distinguished from Helminthosporinm by the shortness of 

 the conidia. It is very doubtful whether relative size of 

 conidia is sufficient to constitute a valid generic character 

 when all other characters are common ; however, we have 

 accepted Saccardo's genus, as in the present group any 

 character that tends to individualise a group is of service, 

 whether of generic value or not. 



Brachysporium stemphylioides. Sacc. 



Tufts effused, black, velvety ; hyphae short, simple, pale, 

 crowded ; conidia terDiinal, solitary, large, obovate, 5-6-sep- 

 tate, not constricted at the septa, the two central cells dark, 

 the terminal ones colourless or yellowish, 35-37 X 16-18 />t. 



Brachysporium stemphylioides, Sacc, SylL, iv. n. 2037. 



HelmintJiosporium stemphylioides j Corda, Prachtfl., p. 7, 

 t. 4. 



On dead wood. 



Brachysporium Salisburiae. Sacc. 



Hyphae torulose, 4-5 /x diam., yellow-brown, aggregated 

 into minute blackish- olive tufts ; conidia at first ovoid, hya- 

 line, 2-guttulate, afterwards larger, 2-3-septate, 14-21 x 

 6—7 /JL. 



Brachysporium Salishurae, Sacc, Syll., iv. n. 2037. 



On fallen leaves of Salisburia. 



Brachysporium oosporum. Sacc. 

 Tufts small, black, hyphae scattered, simple, blackish 



