490 SUMMARY OF CURRENT RESEARCHES RELATING TO 



New Fungi.* — In the third century of their Enumeration of the 

 Fungi of the province of Bologna, Sigg. G. Cocconi and F. Morini 

 describe the following new species: — Sphserella pulviscula on the 

 stems and leaves of Dianthus hracliyanthus ; Phomatospora Luzulse on 

 the leaves of Luzula spadicea ; Septoria Penzigi on the leaves of 

 Aquilegia vulgaris killed by jMcidium Aquilegise ; Septoria Phalaridis 

 on the leaves and leaf-sheaths of Phalaris hrachystachys. 



New Parasitic Fungi-t — M. V. Fayod describes the following : — 



1. Endomyces parasiticus. This is parasitic on the lamellae of 

 Agaricus rutilans, causing what is often described as the abnormal 

 pubescence of certain specimens, the mycelium vegetating abundantly 

 among the paraphyses. 



2. Peziza mycetopJiila. This forms, on Agaricus vellereus, a 

 mouldiness which is at first white, but becomes afterwards a bright 

 orange. It is pleomorphic, having two forms of fructification, gonidial 

 and conidial, and a sclerotium. The gonidial form is probably 

 identical with Aspergillus lanseus Lk. 



3. Hypomyces Leotiarum. This attacks Leotia luhrica, giving it 

 a green tinge. 



Cleonus ucrainiensis, a new Fungus-pamsite on Turnips.t— 

 Under this name M. F. Gawronski describes a fungus which is 

 exceedingly destructive to turnip-crops. It is intermediate between 

 Cleonus punctiventris and sulcirostris, and may probably be a hybrid 

 between these species. 



Fungus-parasites.§ — Herr F. von Thiimen publishes a complete 

 account of the various parasitic fungi which attack gardens, field-crops, 

 and trees, with a special view of practical use to the cultivator in the 

 description of the modes of combating them. He treats separately 

 the diseases of agricultural crops produced by parasites, those of 

 orchards and gardens, those of the vine, and those of forest-trees. 



Pathogenic Fungi. || — Prof. E. Sadebeck supplies some new 

 information on the diseases in plants produced by fungi. 



The " witch-broom " which occurs in so many kinds of tree, is 

 due to a variety of different causes. The cause of this phenomenon 

 on the beech has not yet been discovered. From the examination of 

 specimens on the copper-beech, Prof. Sadebeck believes it to be due 

 to the mycelium of a fungus, but not of an Exoasciis. 



The " crab " of the larch, which commits frightful ravages in 

 Northern and Central Germany, is caused by the mycelium of Peziza 

 WillJwmmii. 



* Mem. R. Accad. Sci. Bologna, vi. (1885) 32 pp. (2 pis.). See Bot. 

 Centralbl., xxv. (1886) p. 33. 



t Ann. Sci. Nat. (Bot.), ii. (1885) pp. 28-54 (2 pis). 



i Gazeta Kolnicza, xxv. (1885) pp. 374-5. See Bot. Centralbl., xxv, (1886) 

 p. 112. 



§ Von Tliitmen, F., 'Die Bekampfung der Pilzkrankheiten unserer Gultur- 

 gewachse,' Vienna, 1886. See Bull. Soc. Bot. France, xxxii. (1885), Rev. Blbl., 

 p. 228. 



11 SB. Gesell. Bot. Hamburg, March 26, 1885. See Bot. Centralbl., xxv. 

 (1886) p. 286. 



