Protornyces. 30 1 



SynofiytJi. 



Froiomyces pachydermus. Thiim., " Hedwigia," 1874, p. 97. 

 Trail, Scoit. Nat, July, 1883, p. 2,3- 



On Taraxacum officinale. Aberdeen, Prof. J. W. H. Trail. 



Protomyces menyanthis. De Bary. 



Spores aggregated in roundish or confluent patches, immersed 

 in the substance of the leaves, purplish on the surface. 

 Spores brownish, subglobose. 



Syf2ony?n. 



Frotomyces jnefiyatiihis, De Bary. Cooke, "Micro. Fungi," 

 4th edit., p. 228. 



Exsiccati. 

 Vize, "Micro. Fungi/' 151. 



On the leaves of Menyantlics irifoliata and Comarum pabtstre. 



Biology. — This species Professor Trail finds commonly in Aber- 

 deenshire, on Menyafitkes, but not upon Comarnin. 



Protomyces ari. Cooke. 



Spots aggregated in elongated patches, immersed in the substance 

 of the leaves and petioles, always covered, globose, simple, 

 brown. Endochrome granular. Epispore smooth. 



Synonym. 

 Frotomyces ari. Cooke, " Micro. Fungi," 4th edit.^ p. 227. 



On the leaves and petioles of Arum inaculatum. 



