438 FUNGUS-FLOEA. 



Distinguished from Triposporium by the conidia being 

 sessile, and the sterile hyphae almost obsolete. 



Ceratosporium digitatum. Sacc. (fig. 12, p. 397.) 



Forming effused, black, dense velvety patches ; conidia in 

 fascicles of 2-4, attached at the base, sessile on the slender 

 creeping threads, obclavate, wavy, many-septate, pale then 

 dark brown, 80-120 x 12-16 jx. 



Ceratosporium digitatum, Sacc, Syll., iv. n. 2625. 



Sporidesmium digitatii/m, Cke. 



On holly branches. 



** Maeronemeae. 

 TEIPOSPOEIUM. Corda. (fig. 11, p. 397.) 



Sterile hyphae scanty, creeping; fertile hyphae erect, 

 brown, rigid, septate ; conidia terminal, brown, stellate 

 with 3-4 rays. 



Triposporium, Corda, Icon. Fung., i. p. 16 ; Sacc, Syll., iv. 

 p. 554. 



Distingnished by the coloured, stellate, 3-4-rayed conidia. 



Triposporium elegans. Corda. (fig. 11, p. 397.) 

 Mycelium very slender, effused, brown ; fertile hyphae 

 erect, slender, simple or sparingly branched, brown, trans- 

 lucent, distantly septate ; conidia stellate, central point dark 

 brown, the three or four rays paler, each ray 4-6-septate, 

 tip subhyaline, 48-50 /j. long. 



Triposporium elegans, Corda, Icon. Fung., i. p. 160, fig. 220; 

 Sacc, Syll., iv. n. 2631. 

 On rotten wood. 



Triposporium ficinusium. Preuss. 



Tufts broad, black ; hyphae erect, simple, septate, long, 

 blackish-brown, dilated at the base, attenuated and paler 

 upwards ; conidia solitary, inserted at the apex of the coni- 

 diophore, pedicellate, tri-radiate, central portion blackish- 

 brown, rays paler, apiculus white, obtuse, 4-5-septate. 



Triposporium ficinusiwm, Preuss, Fung. Hoyersw., p. 64; 

 Sacc, Syll., iv. n. 2634. 



On rotten wood. 



