212 Eumycetes. — Pflanzenkrankheiten. 



Arnerospoveae werden 8 Arten, von den Deniatiaceen 16, von den 

 Stübaceen 2, von den Tuberculariaceen 15 Arten (darunter die neuen 

 Arten Tubercularia olivacea Bres. n sp., Fusarium orthospennuni v. 

 Höhnel n. sp. und Fusarium acicolum Bres. n. sp. vel nova matrix 

 genannt. Zum Schlüsse werden noch 6 Formen steriler Mycelien 

 erwähnt und anhangsweise eine Reihe von Formen, die früher als 

 Pilze in neuester Zeit aber als Gallenbildungen erklärt worden sind. 

 Aus der Gruppe der Myxo-tnyceten werden 2' Formen genannt. 

 Daran schliesst sich die Besprechung der Basidiomyceien. Die Ure- 

 dineeii sind hier vertreten durch 18 Arten, die Auriculariaceeii 

 durch die eine neue Art Platygloea pini v. H. n. sp., die Tremelli- 

 neen durch 2 Arten, die Hymenomyceten durch 56 Arten. Hoffent- 

 lich können wir in diesen Arbeiten des Verf. den Grundstock für 

 die Bearbeitung einer noch immer ausständigen Pilzflora Nieder- 

 Oesterreichs erblicken. Köck (Wien). 



Weldon, J. H., A key to the british Agaricineae. (Lancashire 

 Naturalist. II, 23. 1910.) 



The author has prepared a key to the genera and species of all 

 the British Agaricineae. The Synopsis which is now appearing in a 

 monthly periodical will be more useful in book-form. 



A D. Cotton (Kew). 



Westling, R., En ny ascusbildande PenicUlium- a r t. [Eine 

 neue ascusbildende Penicilliuin- Ar i\. (Svensk bot. Tidskr. 

 IV. p. 139—145 with 1 flg. in the text. Stockholm 1910.) 



On ^a number of wild herbs gathered at midsummer-time on 

 mount Areskutan, were found little yellow Perithecia of a new 

 species of PenicUlium, described and delineated under the name of 

 PenicUlium baculatum. Its ascospores resemble, when young, the 

 spores of Brefelds PenicUlium glaucum^ but when older, the spores 

 of Aspergillus glaucus Link. In a moist room they produced coni- 

 diophores of the common Penicillium-ty^e, and for this reason the 

 author wants to make a new group of this species together with 

 Brefelds PenicUlium glaucum and some others, designating it the 

 real Penicillium-gronp and placing them, as to System, near the 

 Aspergillus. J. Lind (Copenhagen). 



Petch, T., A root disease of Hevea. {Sphaerostilbe repens, B. 

 and Br.). (Circ. Agric. Journ. roy. bot. Gard. Ceylon. V. 8. p. 

 65—71. 1910.) 



The cortex of affected roots is decayed, but there is no external 

 mycelium of Sphaerostilbe. If the cortex is removed, black or red 

 flattened Strands of mycelium, 2—5 mm. in breadth are found run- 

 ning over the surface of the wood. Where rootlets pass off these 

 Strands are often fused into a continuous sheat. When the mycelium 

 is exposed, fructifications are produced: 



a) Conidiophores, with free spores or conidia. 



b) asci, each enclosing eight spores. These are collected within 

 perithecia, crowed along the edge of the mycelium. 



The conidial stage of Megalonectria pseiidotrichia is ver}^ easily 

 mistaken for that of Sphaerostilbe repens. 



Sphaerostilbe repens has been recorded from other plants, as 

 jak, arrowroot, and dadap, and it appears to be parasitic or sapro- 



