352 OUTLIxN'ES OF BRITISH FUNGOLOGY. 



1. griseiun, Lk.; Grev. t. 102./. 1. On dead leaves. 



2. flavo-virens, i^r. ; Grev. t.lO'i. f. 2. On dead leaves, etc. 



3. album, Besm. {no. 248). On dry but green oak-leaves. 



220. SPOROTRICHUM, Lk.* 



Flocci ascending, tufted, septate. Spores simple, scattered, 

 at first concealed. 



1. clilorinum, Lk. On dead leaves. 



2. aurantiacuni, G)-ev. On dung. 



3. sulphureura, Grev. t. 108./. 2. On corks, etc., in cellars. 



4. laxum, Grev. t. 108./. 1. On various decaying substances. 



/S. geochroum is the conidiiferoxis state of some Hypoxylon . 



5. inosculans, B. in Engl. 11. I. c. p. 346. On Thdeplwrce. 

 G. fenestrale, JDitm. I. c. t.\. On dirty glass. 



221. ZYGODESMUS, Cd. 



Flocci short, erect, springing from the creeping sterile 

 threads ; joints here and there cut halfway through. 

 1. fuscns, Cd. On decayed wood. 



222. VIRGARIA, Nees. 



Flocci erect, dichotomous, virgate, black, septate. Spores 

 minute, scattered over the branches. 



1. nigra, Tr.; Grev. t. 274. On fallen branches. 



223. BOLACOTRICHA, B. and Br. 

 Flocci unbranched, jointed, curled at the top. Spores 



* It may be doubted whether there are any genuine species of this genus, 

 whose characters are very uncertain. They are mostly couidiiferous states of 

 other plants. 



