40 Algae. — Eumycetes. 



Closterium Nitzsche. (Zschr. d, Ferdinandeums für Tirol etc. III. 

 Folge. 54 Heft. p. 349—352. 1910.) 



Neue Formen sind: Closterium angiistatiim Kg. forma elon- 

 gata und Closterium Kütsingii Breh. forma hybrida. 



Matouschek (Wien.) 



Adams, J. and G. H. Pethybridge. A Census catalogue of 

 Irish Fungi. (Proc. royal irish Ac. XXVIII., 4. June 1910. p. 

 120-166.) 



An enumeration in systematic sequence of all the fungi that 

 occur in Ireland, some 500 species. In addition there is a short 

 historical sketch, a chapter on the general distribution of fungi in 

 Ireland and a complete bibliography of works and papers dealing 

 with Irish mycology. A. D. Cotton (Kew). 



Bancpoft, C. K., Researches on the Life-history of Para- 

 sitic Fungi. (Ann. Bot. XXIV. April 1910. p. 359-371. 1 pl.) 



In the first of this series of investigations an account is given 

 of artificial caltures and infection experiments with Cladosporiiim 

 herbariun Link. It is shown that the life-cycle is composed of two 

 conidial förms, one a parasitic form, Hormodendron, and the other 

 a saprophytic form, Cladosporiiim. Each form is capable of giving 

 rise to the other, and the lifecycle appears to be complete without 

 the intervention of an ascigerous stage. Hormodendron is the summer 

 form, and often produces disease on the leaves of man}' plants. 

 When the tissues are dead the Cladosporiiim form develops. The 

 plants employed in the experiments included species of Brassica, 

 Cucumis, Arctium, Catalpa, Althaea, Malva, Circaea, Funkia, Phlox, 

 and Digitalis, all of which were readily infected by Hormodendron. 

 Conidia of Cladosporiiim when placed on living leaves gave rise to 

 conidia of Hormodendron which infected the leaves; direct infection 

 by Cladosporiiim was not obtained. 



In artificial cultures Cladosporiiim was found to give rise to 

 Hormodendron if the temperature was moderately high, but at a 

 lower temperature it reproduced itself. In winter Cladosporiiim 

 exists in the form of microsclerotia which germinate in spring 

 giving rise to Cladosporium spores. The latter on germination pro- 

 duce Hormodendron. 



The author shows that C. herbarum, Link is the same plant as 

 C. epiphyllum Nees, and gives a füll list of synonomy. 



A. D. Cotton (Kew). 



Cotton, A. D., Notes on British Clavariae. III. (British myc. 

 Soc. Trans. 1909. IIL 3. p. 179—184.) 



In the third number of these notes, revised descriptions are 

 given of C. Kunsei, Fr., C. umbrinella, Sacc, and C. tenuipes, B. and 

 Br. C. grisea is shown from the examination of Persoon's speci- 

 mens to be a synonym of C. cinerea. A small yellow species distin- 

 guished from C. inaeqiialis and its allies, by the smooth oblong, 

 obliquely apiculate spores is described as C. persimilis sp. nov. It 

 should be noted that fig. D., Plate III is incorrect and does not refer 

 to C. persimilis. A. D. Cotton (Kew,). 



Hollos, L., A szarvasgombäröl. A. szar vasgomba törte- 



