Dec. 1903 ] Notes from Mycological Literature 
243 
R. Maire and P. A. Saccardo under the Title Sur un 
nouveau genre de Phacidiacees, Ann. Mycolog. i 1417-9, Sept. 
1903, furnishes the diagnosis of Didymascella Maire et Sacc. gen. 
nov. “A Didymasco sporidiis phseodidymis, nec non habitu 
ascomatis paraphysibusque recedit, et certe ad Phacidiaceus prox- 
ime accedit. 
Michigan Mushrooms, a few of the common Edible 
Fungi occurring in the State, are described and illustrated by B. 
O. Longyear in the Mich. Exp. Sta. Bull. 208:79-100, April 1903. 
The Morels and Puffballs with a general account of the character 
and structure of Mushrooms occupy the pages — presented in a 
very acceptable manner for beginners in Mycology. 
Bacterial Spot, a New Disease of Carnations, by A. F. 
Woods, is published in Science, N. S. 18:537-8, October 23, 1903. 
The organism causing this spot disease is said to be quite distinct 
from the orange-colored Bacterium dianthi described on this host 
by Arthur and Bolley. Successful inoculations have been made; 
complete cultural characters for various media will be deter¬ 
mined. The author says that under natural conditions the bac¬ 
teria appear to gain entrance to the leaves and stems from the 
slight injuries produced by the red spider and by other causes. 
Mycologische Fragmente von Prof. Dr. Franz v. 
Hohnel in Wien, published in Annales Mycologici, 1:39i~4i4, 
contains the descriptions of a large number of new species and 
also the following genera: Heimerlia novum Myxomycetum 
(Echinosteliacearum) genus; Siropatella n. g. Excipulacearum; 
Agyriellopsis n. g. Excipulacearum. Critical notes on several 
species also are given. Concerning Exosporium rosae Fuckel the 
author states that it is no Exosporium; it is Cercospora rosae 
(Fuckel) de Hohnel with synonomy as follows: Exosporium 
rosae Fckl. Symb. Myc., Cercospora rosicola Allesch. & Schnabl 
(non Pass.) F. Bavar. 498, C. rosae-alpinae C. Mass, and C. hypo- 
phylla Cavara. 
Versuche mit Heteroecischen Rostpilzen, Vorlaufige 
Mitteilung, by W. Tranzschel, Centrbl. Bakt. Parasit. Infek. 2. 
Ab. 11 :io6, 1903, states in part as follows: “In einer Reihe von 
Versuchen gelang es durch Aussaat der Sporen von Aecidium 
leucospermum DC. (auf Anemone nemorosa L.) auf Sorbus 
Aucuparia L. die Uredosporen von Ochrospora Sorbi (Oud.) 
Diet, zu erzeugen. Puccinia Polygoni amphibii Pers. (auf 
Polyg. amphibium L.) ergab das Aecidium sanguinolentum 
Lindr. auf Geranium palustre L. und G. pratense L. Die der 
Pucc. Polygoni amphibii Pers. entsprechende Micro-Art) ist 
Pucc. Morthieri Korn.” 
