Journal of Mycology 



TABLE OF CONTENTS 



Atkinson and Edgxrtom — Protocoronospora, a New Genus of 



Fungi 185 



Jennings — A Case of Poisoning by Amanita Phalloides 187 



Davis — A New Species of Protomyces 188 



Arthur — Cultures of Uredineae in 1906 189 j u.t, . 



Wilson — An Historical Review of the Proposed Genera of Phy- 



camycetes 205 



Kbllerman — Index to North American Mycology 210 i - > - i A iN * 4. 



Kbllerman — Notes from Mycological Literature. XXV 228 



Sditor's Notes 232 



•Ci.-^*cDE^ 



PROTOCORONOSPORA, A NEW GENUS OF FUNGI. 



(Preliminary Note.) 



GEO. F. ATKINSON AND C. W. EDGERTON. 



The senior author discovered a fungous disease of the cul- 

 tivated vetch during July which does not seem to have been 

 described before, and was first observed on the stems and pods 

 from a small patch of vetch on the Horticultural grounds of Cor- 

 nell University and later collected on vetch in the fields on the 

 University farm where it seems to be abundant and a serious 

 pest, often being associated with an Ascochyta. On the pods it 

 often occurs quite pure, and here it is easily seen with the un- 

 aided eye to be distinct from the disease caused by the Ascochyta. 

 It is, however, frequently mixed, even on the pods, with this 

 fungus, but the very characteristic spots alone serve to distin- 

 guish it. 



The spots are elongated, either narrow or elliptical, some- 

 times with a dull purple border. On the pods they are oblique. 

 The spores ooze out in mass and have a pale pink or flesh color, 

 but when spread in a thin layer, form a whitish film. 



The fungus is subepidermal. The epidermis is ruptured in 

 the form of a slit through which the spores escape. The myce- 

 lium becomes brown and then black, and the epidermis is later 



^blackened ; in age the spots are black oblique lines as seen on 



g>the pods, and many of them are sterile probably through failure 



l^of the fungus to fruit. 



fi^ (185) 



fc 



