74 SUMMARY OF CURRENT RESEARCHES RELATING TO 



P. Dietel* gives a further instalment of his notes on Japanese 

 Uredineae. 



P. Dietel f also describes four new species belonging to this group 

 sent to him from Tokio. 



Notes on American Fungi.} — C. G. Lloyd criticises the genus 

 Stella of Massee, and suggests its identity with a Scleroderma. He also 

 notes that the American Lycoperdon separans is the same as the Euro- 

 pean L. cruciatum, and describes a new species from Washington D.C., 

 L. pseudoradicans. G. Bresadola describes a new species which has the 

 habit of a Cordyceps and the fructification of a Hypocrea as Hypocrea 

 Lloydii ; it was found in West Virginia. Figures of other fungi are 

 also given. 



Fungus Diseases in Australia^ — Dr. McAlpine has just issued an 

 exhaustive account of the fungi that have been found on stone-fruit 

 trees, almond, apricot, cherry, peach, and plum. He describes the 

 attacks and the best way to remedy them, and then gives a technical 

 description of the fungi, 117 in all, as they occur on stem, root, leaves 

 or fruit. Many of the species are new to science, but not all are 

 originators of disease, 38 only are parasitic, the others are saprophytes 

 and harmless. There are abundant illustrations which should help the 

 growers to identify the fungi and determine their nature. Of the plates 

 10 are coloured and represent the diseases most commonly met with in 

 the colony. 



Fossil Fungi. || — L. Pampaloni has studied the minute flora and 

 fauna of the miocene deposits of Dysodile, which is an inflammable shale 

 found at Melilli in Sicily, and he has referred a considerable number of 

 microfungi to various existing allied genera. He describes specimens of 

 Pythites, Peronosporites, Uncinulites, Erisiphites, Perisporites, Chcetomites, 

 Melanosporites, Microthy rites, and Monilites. In the latter he gives spore- 

 measurements. 



Fungus Flora of Humus. H" — C. A. J. A. Oudemans and C. J. Koning 

 are studying woodland soil, and by examination and culture determining 

 the different fungi that grow there, chiefly the microscopic varieties. 

 Their method is to take a small bit of decayed vegetation with spores or 

 mycelium adhering to it. This is triturated in sterilised water, then 

 diluted. A small quantity of the fluid is added to prepared gelatin and 

 comparatively pure cultures are obtained of the different organisms. 

 Oudemans is responsible for the determination of the species. He has 

 already found 45, mostly Mucoracese and Mucedinese, with 3 Sphgerop- 

 sidese. There are four new species of Mortierella and 2 new species of 

 Mucor. In all he finds 33 species are new to science of those that he 

 has named. A number of bacteria have also been isolated, but they are 

 not dealt with in detail. The paper is beautifully illustrated. 



* Op. cit., xxxii. (1902) pp. 47-55. 



t Hedw. Beibl., xli. (1902) pp. 177-8. 



+ Mj cological Notes, by C. G. Lloyd, No. 9 Lloyd Library (Cincinnati, April 

 1902). 



§ D. McAlpine, Fungus Diseases of Stone Fruit Trees in Australia and their 

 Treatmeut, Melbourne, 1902, 165 pp and 54 pis. 



|| Atti d. Reale Accad dei Lincei, xi. (1902) pp. 248-58. 



i Aich. Neer. Bci. Exact, et Nat., vii. (1902) pp. 266-98 (30 pis.). 



