203 



1. — Dactyliuin macrosjjomm Fr. Common on dead leaves, kc. 

 2. — D obovatum Berk. Ann. Nat. Hist, Ser. I. vi. 437, 



No. 242. Cum icone, on wood, Batheaston. 

 3. — D roseum Berk. Tricotheciun roseura Fr. On rotting 



plants ; Common. 



GENUS 230. FUSIDIUM.* Lk. 



Flocci coloured, very delicate, evanescent : spores straight, 

 filiform. 



1. — Fusidium griseum Lk. Very common on dead leaves. 

 2, — F flavo-vii'ens /''/■. Very common on dead leaves. 



GENUS 231. Sl'OROTRICHUM.t Lk. 



Flocci ascending, tufted, septate ; spores simple, scattered, at 

 first concealed. 



1. — Sporotriclium sulpluireum Grev. On old boards, &c., Bath- 

 easton. 

 2. — S torulosuin Bon. St. Catherine's, Batheaston, on dead 



wood. 



GENUS 232. ZYGODESMUS.J Cda. 



Flocci short, erect, springing from the creeping, sterile threads ; 

 joints here and there cut half way through with a semi-circular 

 swelling above the division. Spores rough. 

 Zygodesmus fuscus Cda. Common on decayed wood. 



GENUS 233. COCCOTRICHUM § Lk. 



Flocci branched, septate, coloured ; spores simple, opaque, at 

 first collected into a globule at the tips of the threads, at length 

 scattered over the flocci. 

 1. — Coccotrichum brevius B. and Br. MSS. Staining the water 



in which it is immersed of a bright vinous colour. Leigh 



woods, on old rotten stumps, October. 



* From fusus, a spindle. 



t From sporos, seed, and thrix, a hair. 



X From zugos, a yoke, and desmos, a chain. 



i From coccos, a berry, and tbrix, a hair. 



