PLANTS OF NORTH ELBA 229 



Hypoxylon perforatum Schw. 

 Dead trunks of mountain maple. South Meadow. 



Hypoxylon multiforme Fr. 

 Dead wood of yellow birch. Old Keene road. 



Daldinia vernicosa {Schw.) C. &■ D. 

 Dead trunks of young standing deciduous trees. John Brown farm. 

 It is very doubtful if this and D. concentrica (Bolt.) C. & D, are really 

 distinct species. Connecting forms seem to occur. 



Nummularia repanda (iv-.) Nits. 

 Dead trunks of American mountain ash. Near Newman. September. 



HYPOCREACEAE 

 Hypomyces later itius (^n) TuL 

 On the hymenium of Lactariiis icvidns. Valley of the Ausable. 



Hypocrea rufa {Pers^ Fr. 

 Decaying wood of sugar maple. Raybrook. August. 



Nectria cinnabarina {Tode) Fr. 



Dead branches of deciduous trees. Valley of the Ausable. The 

 conidial state, Tiibercidaria vulgaris Tode, grows in company with it. 



Chilonectria Rosellinii {Carest) Sacc. 

 Dead bark of balsam fir. Valley of the Ausable. 



Claviceps purpurea {Fr) Tid. 



Ergot. Spurred rye 



Heads of rye. Wood farm, August. The affected grains become 

 much enlarged, elongated and changed in color and texture. 



DOTHIDEACEAE 



Plowrightia morbosa {Schw.) Sacc. 



Living branches of wild red cherry. Lake Placid. Freemans Home 



and Indian pass. This is a destructive parasitic fungus which produces 



unsightly black swellings or excresences on the branches. These swell- 



