Fungi, Myxomyceten, Pathologie. — Bacteriologie. 627 
such authors as Ward, Roth, Freeman, Mohr, and Von Schrenk. 
Fungus diseases considered are the common ones caused by such 
organisms as Pythium, Peridermium, Trametes, Polyporus, Armillaria , 
Merulius, Polystictus and Lensites. A paragraph is given to the 
mistletoe, Razoumofskya, which is common on conifers in the Rocky 
Mountains. Raymond J. Pool. ' 
Coker, W. C. and J. D. Pemberton. A new Species of 
Achlya. (Bot. Gaz. XLV. 194—196. March 1908.) 
The specific description of Achlya hypogyna, sp. nov. is given 
here. “The absence of antheridial branches and the origin of the 
fertilizing tubes from the septa separating the oogonia and antheridia 
distinguish this from all other species of Achlya and from all other 
Saprolegniaceae except the Hypogyna group in Saprolegnia .” The 
structure of the fungus is illustrated by six figures in the text. 
Raymond J. Pool. 
Edgerton, C. W., Notes on a Parasitic Gnomonia. (Bull. Torr. 
Bot. Club. XXXIV. p. 593—597. Dec. 1907.) 
The disease appeared on the canes of Rubus nigrobaccus when 
the fruit was about half grown. Leaves and fruits above the infected 
Spots wilted and dried up. The effect on the plant was that of a 
severe girdling. The appearence of the canes was similar to that of 
raspberry when attacked by a Coniothyriurn. Perithecial Spots 
completely surrounded the canes killing the tissues at this point. 
Cultures of the ascospores were made on bean agar in which the 
spores germinated by sending out a germ tube from each end. 
Perithecia occured in the cultures in about fourteen days. The 
connection of the fungus with the disease on the canes was proved 
by cultures. The paper is illustrated by photographs and drawings 
which show the macroscopic and the microscopic characteristics of 
the disease. The author concludes that the fungus is “a weak 
facultative parasite, a form that will grow rapidly as a saprophyte 
on the canes and will if conditions are suitable adapt itself to the 
living canes.” Raymond J. Pool. 
Gueguen, F„ Sur le Bacillus endothrix, nouvelle bacterie para¬ 
site du cheveu. (C. R. Acad. Paris, T. CXLVI. 1908.) 
Le Bacillus endothrix , nov. sp., a ete isole par l’auteur dans 
une affection peladoide du cuir chevelu. Le microbe envahit toute 
la substance du cheveu, sans l’epidermicule; disposees Sans ordre 
dans la moelle, les bacteries forment, dans l’ecorce, des files paral¬ 
leles ä Taxe du cheveu et figurent, par transparence, de fines stries 
longitudinales discontinues. Ce microbe est un court bacille (1,5 u 
ä 2 ,u sur 1 fi ä 1,2 u) cocciforme au moment de la division, immo¬ 
bile dans les cultures, sans cils et legerement encapsuld. On n ! a 
pas observe de spores. II se cultive sur les milieux usuels et fournit 
un pigment jaune citron; les cultures sont visqueuses. Adrobie strict; 
Optimum de culture entre 25° et 30° avec arret ä 41°. Non patho¬ 
gene pour le cobaye et le lapin. Se colore bien par les violets, mal 
par la fuchsine; prend le Gram. M. Radais. 
Hinterberger, A., Bemerkungen zur Frage, ob Bacillus 
