I'rlcliia. 175 



tapered, rarely smooth, arcuate or twisted point, in lengtli twice 

 the diameter of elater; spores globose, pale yellow, smooth, 

 16 — 17 [x diameter. 



Trichia heterotricJda, I. B. Balfour, Grev., vol. x,, p. 117; 

 Sacc, SylL, n. 1505; Mass., Mon. Trich., p. 5, f. 16. 



On bark. Britain (in Herb. Currey, Kew ; no locality). 



A species resembling most nearly forms of Trichia varia, 

 Pers., but the few elaters with the very varying sculpturing 

 and the larger smooth spores sufficiently separate tliem. (I. 

 B. B.) 



B. S])orcs luarted. 



§ Elaters fusiform. 



Trichia frag^ilis, E,ost. (figs. 7—10). 



Sporangia var3;ing from globose to pyriform, stipitate, solitary, 

 or fasciculate on a common stem, wall smooth, blackish or 

 purple-brown, pale brown or yellowish ; stem dark, longitudinally 

 wrinkled, equal or tapering upwards, erect or curved, often 

 twisted in the compound forms, inside of the wall often with 

 coloured organic lumps ; mass of capillitium and spores varying 

 from dull orange-brown to primrose-yellow, separated from the 

 hollow of the stem by a membrane ; elaters fusiform, 4 — 5 y. at 

 thickest part, sometimes branched, sinrals flat, rather broad, 

 not very prominent, tips smooth, tapering to a thin point, spores 

 globose, minutchj warted, 11 — 14 ju, diameter. 



a. genuinct. Sporangia pyriform, solitary or fasciculate, clear 

 or black-brown, opaque ; mass of capillitium and spores varying 

 from reddish-brown to dirty ochre ; stem erect. 



/3. Lorinscriana. Sporangia pyriform, solitary or fasciculate, 

 reddish- brown, polished; mass of capillitium and spores dirty 

 ochraceous ; stem generally curved. 



y. serotina. Sporangia clavate or pyriform, solitary or fascicu- 

 late ; mass of spores and capillitium clear yellow to ochraceous ; 

 stem erect or curved. 



8. lateritia. Sporangia subglobose, solitary or fasciculate, 

 almost black ; mass of capillitium and spores dark orange-brown ; 

 stem attenuated upwards. 



