296 SUMMARY OF CURRENT RESEARCHES RELATING TO 



New Fungi.* — Herr H. Zukal describes the following new species 

 of fungus, viz. — Erythrocarpon microstomum, Microascus longirostris, 

 Sporormia immersa, Melanospora ornata, and M. Solani, also the 

 pycnidia of Spliseronema vitreum. Two new Myxomycetes are also 

 described, viz. TricJiia nana, near to T. fallax, and Amaurocheete 

 speciosa, distinguished by the structure of its capillitium ; and a new 

 bacterium, B. tortuosuw, forming zoogloeas, and well marked by the 

 ribbon-like arrangement of the separate individuals. 



Hetercecious Uredinese-I — Pursuing his investigations of the life- 

 history of these fungi, Herr E. Eostrup has made out that several 

 species of Gseoma are aecidial forms of Melampsora, M. Capresearum DC, 

 for example, growing on Salix cinerea and S. Oaprsea, is the second 

 generation of Gseoma Euonymi; another species growing on S.mollissima, 

 viminalis, and other species, is identified with G. Bihesii Lk. found on 

 Bibes Grossularia and alpinum ; a Melampsora occurring on Populus 

 tremula and alba has its secidial form in Gseoma Mercurialis Pers. ; 

 while G. pinitorquum is connected genetically with a Melampsora 

 growing on Populus. 



Puccinia dioica Magn. was found on Gar ex dioica, and in close 

 proximity specimens of Girsium palustre attacked by a rare secidium 

 which is probably connected with it. A new secidium, ^. Ginerarise, 

 was found on Gineraria palustris, and close by Eriophorum angustifolium 

 attacked by Puccinia Eriophori. 



The author makes the observation, in conclusion, that it is not 

 uncommon, in experimental sowings, for the spores to germinate in 

 the leaves of plants which are not normally attacked by them, and 

 there to produce spermogonia and uredospores in small quantities ; 

 and this may occur also in nature. Thus among a number of speci- 

 mens of Senecio vulgaris largely attacked by Goleosporium Senecionis, 

 was one of Grepis tectorum, a single leaf of which bore a single sorus 

 of the parasite ; Gymnosporangium clavariseforme produces, on pear- 

 leaves, only spermogonia, not roestelise ; and Gromartium ribicola, 

 very common on Bibes nigrum, occurs only rarely and exceptionally 

 on other species of the genus. 



New Uredinese.J — Herr W. Voss describes a new species of 

 Uredinese, Puccinia {Pucciniopsis) carniolica, found on Peucedanum 

 Schottii, in two of its forms, the hymenium-form (^cidium Peucedani) 

 and the teleutospore form. Also the three forms of TJromyces 

 (Euuromyces) Gytisi Schrot., viz. : — the hymenium-form {^cidium 

 Cytisi), the stylospore-form, and the teleutospore-form {TJredo Gytisi 

 DC, TJ. Laburni DC, TJromyces Laburni Fck., U. Gytisi Schrot.). He 

 also gives the distinguishing diagnoses of the following species of 

 Puccinia, viz. — P. Falcarise, P. carniolica, P. Bunii, and P. Smyrnii. 



* Verhandl. K. K. Zool.-Bot. Gesell. Wien, xxxv. (1885) pp. 332-45 (1 pi.). 

 See Oester. Bot. Zeitschr., xxxvi. (1886) p. 64. 



t Overs. K. Dansk. Vidensk. Selsk. Forhandl., 1884 (1 pi.). See Bot. 

 Ceatralbl., xxiv. (1885) p. 97. Cf. this Journal, iv. (1884) p. 421. 



X Oester. Bot. Zeitschr., xxxv. (1885) pp. 420-3. 



