CEPHALOTRICHUM. 371 



Periconia podospora, Corda, Ic. Fung., i. p. 19, f. 255; 

 Sacc, SylL, iv. n. 1317. 



On stems of Heracleum spondi/lium, and otlier Umbellifers. 



Periconia minutissima. Corda. 



Tufts minute, brown, not much effused ; fertile hyphae 

 blackish -brown, pellucid, sparingly septate, erect and straight 

 or subflexuous, rarely branched, apex with nuiiierous nipple- 

 like projections that bear the globose, dark brown conidia, 

 8 /x diameter, compacted to form a globose head. 



Periconia minutissima, Corda, Icon. Fung., i. p. 19, fig. 256 ; 

 Sacc, SylL, iv.n. 1320. 



On alder. 



Periconia minima. Sacc. 



Black, effused; fertile hyphae erect or ascending, often 

 forked, about 4-5 fx thick, brown, septate, apices hyaline, 

 obtuse but not inflated ; heads of coniclia rather large, more 

 or less spherical, black; conidia subglobose with a basal 

 apiculus, brown, smooth, 6-7 fx diameter. 



Periconia minima, Sacc, Syll., iv. n. 1333. 



Sporocyhe minima, Cooke. 



On damp millboard. 



(Described from the type S23ecimen). 



CEPHALOTKICHQM. Berk. (fig. 23, p. 358.) 



Fertile hyphae erect, brown, the apex divided into a 

 number of irregularly branched, spine-like, spreading 

 branches that collectively form a head ; conidia subglobose, 

 coloured, borne by the branchlets. 



Cephalotriclium, Berk., Outl., p. 344 ; Sacc, SylL, vol. iv. 

 p. 275 (not of Link). 



Distinguished from. Periconia and. Stachyhotrijs by the crown 

 of irregular, divided branchlets. 



Cephalotriclmm curtum. Berk. (fig. 23, p. 358.) 

 Scattered, very minute, brown ; fertile hyphae erect, 

 short, slender, 1-2-septate, brown, apex branching to form a 

 head, branches 2-3-furcate, with acute spine-like branchlets; 

 ^ conidia subglobose, smooth, 3-4 /x diameter, brown. 



2 B 2 



