2o6 British Uredinecs and Usfilaginea:. 



Puccinia bunii. (D. C.) 



Teletitospores — Sori brownish black, roundish, often cauUne, elon- 

 gated, usually confluent, long covered by the epidermis. Spores 

 elliptical or subpyriform, central constriction slight or absent, 

 punctate, brown, 25-45 x 15-23/x. Pedicels rather long,, 

 deciduous. 



Synonyms. 



Puccinia bunii (D. C). Winter in Rabh., " Krypt. Flor.," 

 vol. i. p. 197. 



Puccinia bulbocastani, Fckl. Cooke, "Micro. Fungi," 4tli. 

 edit., p. 209. 



Puccinia tumida. Grev., "Flor. Edin.," p. 430. 



Exsiccati. 

 Cooke, i. 39; ii. 327. Vize, " INIicro. Fungi Brit.," 216. 



On Conopodium denudatum {^Bmiiiun flexuosnm). 



Biology. — The mycelium is perennial. I have cultivated in^ my 

 garden for four years plants of Bunium in a flower-pot, which are 

 annually affected with the fungus, but they have never produced the 

 ascidiospores. Although this fungus is very common around King's 

 Lynn, yet I have never found the ALcidium bunii, which continental 

 botanists consider to be connected with it. 



Puccinia thalictri. Chevall. 



Tcleutospores — Sori dark brown, very crowded, covering the whole 

 surface of the leaf, soon pulverulent, small, rounded. Spores 

 deeply constricted, both cells rounded, flattened at their point 

 of contact. Epispore covered with pointed warts, dark brown, 

 25-50 X 15-25//-. Pedicels long, deciduous. 



Synonym. 



Puccinia thalictri. Chevall, "Flor. Paris," vol. i. p. 417. 

 Winter in Rabh., " Krypt. Flor.," vol. i. p. 177. 



On Thalictrum flavum, minus var. montanum. 

 September and October. 

 Rannoch, near Perth. 



