Wilson-Seaver's Ascomycetes and Lower Fungi 123 



the past season on old sporophores of the host. The specimens 

 have been compared with authentic material received from Pro- 

 fessor Peck and conform well. 



36. Hysterographium Fraxini (Pers.) de Not. Disp. Pirenom. 



Ister. 22. 1847 



Hysterium Fraxini Pers. Syn. Meth. Fung. 100. 1801. 



On dead twigs of Fraxinus, Sykeston, N. Dak., July, 1907. 



F. J. S. 



This fungus is very abundant on dead twigs of ash wherever 

 the later occurs in considerable numbers. 



37. Massaria inquinans (Tode) Fries, Summa Veg. 

 Scand. 396. 1849 



Sphaeria inquinans Tode, Fungi Meckl. 2 : 17. pi. 10, f. 85. 1791. 



On Viburnum dentatum L., The Bronx, New York City, spring, 

 1907. F. J. S. 



The perithecia are very large and buried with the ostiola ex- 

 tending through the bark. The spores spread over the surface 

 of the bark and are so large that with the hand lens they appear 

 as coarse shining granules. The species is distinguished by the 

 large size of its spores. 



38. MlTRULA PHALLOIDES (Bull.) ClieV. Fl. 



Paris 1 : 114. 1826 



Clavaria phalloides Bull. Herb. France, pi. 463. f. 3. 1791. 



On decaying leaves submerged in water in a swamp, New York 

 City, spring, 1907. F. J. S. 



39. Mollisia cinerea -(Batsch) Karst. Myc. 

 Fenn. 1 : 189. 1871 

 Peziza cinerea Batsch, Elench. Fung. Cont. 1 : 197. 1786. 



On herbaceous stems in swampy place, New York City, spring, 

 1907. F. J. S. 



40. Peronospora effusa Rabenh. Herb. Myc. ed. I. 1880 



On Chenopodium album L., Greencastle, Ind., August 3, 1907. 



G. W. W. 



