416 Fungi, Myxomyceten, Pathologie. 



Mopeland, W. H., The Relation of the Weather to Rust on 

 Cereals. (Memoirs of the Dept. of Agriculture in IndiaVol. l.No. 2. 

 July 1906. p. 53—57.) 



Two views have been held b}^ practical men in the United 

 Provinces, India, as to rust on cereals, (1) that rust follows an 

 unusually wet seed-bed , (i. e. a wet October) and (2) that it depends 

 on damp cloudy weather in January and February. 



The author tests these views by the reports of the meteorolo- 

 gical Office and those of the Department of Agriculture. His conclusions 

 are as follows: (1) The araount of rainfal in October is not a deter- 

 mining factor. (2) Where the harvest is earliest, the extent of the 

 rust varies generally with che humidity of January, tiiough the 

 weatlier of February is not without influence. (3) Elsewhere, the 

 extent of the rust varies generally with the humidity pf these two 

 months taken together. A. D. Cotton (Kew). 



Read, Homei' S., The Parasitism of Neocosmospora. (Science. 

 N. S. XXIII. p. 751—752. May 1906.) 



An account is given of a wilt disease of ginseng caused by 

 Neocosmospora vasinfecta var. iiivea Sm. The writer agrees with 

 Atkinson that the fungus is only a weak parasite, and attacks only 

 plants which are first weakened by another fungus, e. g. , Rhisoctonia , 

 Pythnim, etc. In case of ginseng, its cntrance seems to depend upon 

 an anthracnose caused by Verynicidaria Deynatium. Hedgcock. 



Rekm, H. et J. Riek. Novitates brasilienses. fBroteria. Vol. V. 

 fasc. IV. 1906.) 



Descriptions de Champignons recoltes au Bresil, comprenant 

 16 especes, dont 13 nouvelles: Boletus tropicus, Leptinin sbnilis, 

 Tonientella byasiliensis, Trichobelonünn virgineurn, CyanocephaUuin 

 ßavidian, ScJüsostonia incongnmni , Diatripe leucoxantha , Gibbera 

 Riograndensis , Lisonia Legicntinis , Brooniella Rickiana, Microphynia 

 Rickii, Chlorospleniella collematoides , Hypoxylon albotectum. En outre 

 deux nouvelles varietes: Boletus mutabilis var. austro-aniericana , 

 Histerium angutatiini var. lophioides. J. Henriques. 



Rehm, Zum Studium der Pyrenomyceten Deutschlands, 

 Deutsch-Oesterreichs und der Schweiz. (Fortsetzung) (Annales 

 mycologici. Bd. IV. 1906. p. 393—403.) 



Es werden behandelt von den Massariaceen die Gattungen: 

 Euchnoa, Massarina, Massaria, Pleomassaria. 



Euchnoa mit 4 Arten: E. infernalis Sacc.^ E. abnormis (Fries), 

 E. lanata Fr., E. alnicola v. Höhn. 



Massarina mit 11 Arten: M. eburnea Sacc, M. Corni Sacc, M. 

 microcarpa Sacc, M. ebtirnoides Sacc, M. AI ni Sacc, M. Plöttneriana 

 P. Henn., M. micacea Berl., M. niamima Sacc, ? M. Ligustri Sacc, 

 M.polymorpJia Sacc, M. salicincola Rehm n. sp., M . gigantospora Rehm. 



Massaria mit 21 Arten. Die Gattung wird folgendermassen ge- 

 gliedert: A) Aussenhaut d. Sporen glatt: a) Sporen keulenförmig 

 ungleich 3 — 4 zellig: M. Aesculi Tul., M. foedaiis Fr., M. pupulaTul. , 



