

516 SUMMARY OF CURRENT RESEARCHES RELATING TO 



one of the Diptera3, Sciara Thomse, which frequented LoUum permne, a 

 grass that is subject to attacks of the ergot fungus. He found conidia 

 of the sphacelia stage of the ergot attached to the hairs of the insect and 

 also in the digestive tube. The natural inference is that these conidia 

 are transported to other Lolium plants. 



Notes on Mycology.* — F. von Hohnel continues his descriptions of 

 fungi collected in Java. He describes a great many new species, and 

 establishes the following new genera : Koordersiella and Loranthomyces 

 (Sphaeriaceaa) ; Coccoidella (Coccoideaceas) ; Discodothis (Dothideaceaj) ; 

 Trichopeltopsis (near to Dunerosporium) ; Schiffnerula (Englerulaceae) ; 

 Myxasterina and Microporella (Excipulacere) ; Araneomyces (Mucedinese). 



Notes on Fungi. f — G. Massee gave an address to the mycologists 

 of the Yorkshire Naturalists' Union, in which he advised special 

 study of a group or even of a single genus, not only the systematic 

 side of the question but the ecology of fungi, and the study of the 

 irregular occurrence of so many species. 



Harold Wager \ in his address described the development of an 

 Agaric from mycelium to spore-formation. There are two nuclei in 

 the basidium at an early stage, which fuse together, and the nucleus 

 thus formed divides twice to form the four nuclei of the spores. The 

 origin of the binucleate mycelium has not been traced, though some 

 spores have been found to have two nuclei before they leave the sterig- 

 mata. 



Fungus Foray at Sandsend.§ — C. Crossland describes the foray of 

 the Yorkshire Naturalists' Union to Sandsend, in September last. The 

 woods in the neighbourhood are stocked with well-grown native timber- 

 trees and shrubs, while quantities of exotic shrubs grow freely. A 

 number of Agarics (six) new to Britain were found ; a considerable 

 variety of species of microfungi were also collected and examined. The 

 list of species reaches the large total of 563 species, 145 of which are new 

 to the Mulgrave district. 



Mycological Flora of Oak-tree Slime-flux. — Ludwig Rose has 

 isolated a number of organisms from the slime that issues from wounds 

 in the oak-tree. He made cultures from six different trees in the 

 neighbourhood of Berlin, and in all cases he found the fungus Endo- 

 myces Magnusii, with which he made a series of experiments as to its 

 physiological and fermentative properties. He found also the oak-yeast 

 Saccharomy codes Ludwigii, and a bacterial fungus, Leuconostse (Acteo- 

 bactcriurn) Lagerheimii sp.n. 



* SB. k. Akad. Wiss. Wien, (1910) p. 813. See also Bot. Centralbl., cxvi. (1911) 

 pp. 207-9. 



t Naturalist, 1911, pp. 26-27. 



+ Tom. cit., pp. 27-8. 



§ Naturalist, 1911, pp. 21-6. 



|] Wochenschr. Brauerei, xxvii. (1910) Nos. 42-7 (5 pis. and 31 figs). See also 

 Ann. Mycol., ix. (1911) pp. 131-3. 



