218 Botany. 



Group 2. Perisporieae. 



SPHJEROTHECA humuli, (DC.), Schrot. Common on hops. 

 ERYSIPHE graminis, DC. Common on grasses. 



ASPERGILLUS (EUROTIUM) herbariorum, Wiggers. Common in 

 herbaria. 



A. glaucus, De Bary. Common mould on cheese, jam, etc. (= A. 

 herbariorum, Wigg.). 



PENICILLIUM crustaceum, Fr. A common blue-green mould on 

 bread, etc. 



Group 3. Pyrenomycetes. 



XYLARIA polymorpha, Grev. On decaying wood, Crown Woods, 

 Eltham. 



X. hypoxylon, Grev. Very common on stumps. 



HYPOXYLON coccineum, Bull. Common on various dead woods 

 (beech). 



LASIOSPH/ERIA rhacodium, (Pers.), Ces. et de Not. Often under 

 the lifting bark of dead wood, Crown Woods, Eltham. 



POLYSTIGMA rubrum, Fr. On cherry and plum ; very common in 

 Kent. 



NECTRIA cinnabarina, Tode. Common on dead twigs, Plumstead, 

 J.F.B. 



TROCHILA ilicis, Cronan. Common under holly bushes. 

 T. lauroeerasi, Fries. Common under laurels. 



Group 4. Protoascfneae. 



EXOASCUS deformans (Berk.), Fuck. (WITCHES' BROOM). Common 

 on birches. 



Section III. PHYCOMYCETES. 



(See remarks under UREDINEJE). 



Group 1. Zygomycetes. , 



MUCOR mucedo, L. Very common on bread, jam, etc. 



THAMNIDIUM chaetoeladioides, Bref. On rabbits' dung, Cator 

 Estate, Shortlands. R. Beer. 



SPORODINIA aspergillus, (Scop.), Schrot. On agarics, Boletus, 

 etc. ; common. 



PILOBOLUS crystallinus, Tode. On sheeps' dung, etc. ; common. 

 EMPUSA muscae, F. Cohn. On dead flies ; common in autumn. 



