INVERTEBRATA, CRYPTOGAMIA, MICROSCOPY, ETC. 307 



leaves showed evidence of unhealthiness. The leaves were in some 

 cases attacked hy Exohasidium, but then there were no berries. 



Examination of the berries showed that beneath the white skin 

 was a sclerotium-like body, resembling the berry in form, and form- 

 ing a hollow globe ; it was of a horny consistency, and composed 

 on the upper and under surfaces of a black, smooth, cortical substance, 

 within of a white, cartilaginous medullary mass. It had consumed 

 the flesh of the berry, sclercnchyma-cells remaining enclosed in the 

 sclerotiura. On being made artificially to germinate the sclerotium 

 developed into an ascomycetous fungus, the asci each containing eight 

 ascospores. This was determined by Schroeter to be a Pezizn, belonging 

 to the section Sclerotinia of Fuckel, and the genus MiUstroemia of 

 Karsten. He considers it nearly allied to P. Fucheliana de By., and 

 proposes for it the name Rutstroemia {Sclerotinia) baccarum. 



The plantations of cranberry (^Oxycoccus macrocarpus) which cover 

 large tracts of gi-ound in New Jersey, Maryland, and Pennsylvania, 

 are liable to a disease which results in decay of the berries. Schroeter 

 suggests that it may be due to the attacks of a parasitic fungus of a 

 similar nature. 



Researches on Uredineae.* — Dr. J. Schroeter continues his 

 careful investigations of this interesting family of fungi, respecting 

 the life-history of which much still remains to be learnt. He is able 

 to give a full description of the rare Uredo Ledi, the uredospores of 

 which indicate that the fungus is really a Coleosporium, and he pro- 

 poses the name Coleosporium Ledi. To the same species he also refers 

 Uredo Bhododendri. 



In this instalment of his paper Dr. Schroeter gives a synopsis of 

 the genus Coleosporium ; of the UredinesB parasitic on European 

 Eanunculaccfe, on European grasses, and on European Umbellifcrae. 

 A large number of observations on other species are also recorded. 



Uredo Circaeae.| — A fungus growing on Circcca was long ago 

 described under this name by Albertini and Schwcinitz. Schroeter 

 mentions it under the uredo-forms of which the teleuto-forms arc not 

 yet known. Dr. G. Winter has now detected the teleutosi)ores, and 

 detei'mincs the fungus to belong to Melampsora according to the old 

 definition of this genus, and L. Magnus's section of it Phrmjmopsora. 

 He therefore assigns to it the name Phra/jmopsora Circtece, and con- 

 siders it near to P. Epilobii, which was growing at a short distance on 

 Epilohium roseitm. 



Onion-rust, Urocystis Cepulae.J — In continuation of his previous 

 researches on this subject, § M. Ooruu reviews what is at present 

 known respecting this pest. He does not regard the fungus as a 

 variety of Urocystis Colchici as suggested by Dr. Cooke, but ratlier as 

 an independent species ; and the disease, therefore, as one that has 

 only quite recently made its appearance, carried probably to the 



• ' n.itr. I'.inl. Pflnnz.' (Colin), iii. (1879) p. 51. 

 t ' Ilwlwigiii,' xviii. (IfST'.i) p. 170. 

 X ' IJull. Soc. IJot. Fiann,' xxvi. (1879) p. 203. 

 § See this Journiil, ii. (1879) p. 921. 



X 2 



