98 NEW YORK STATE MUSEUM 



Acrothecium melanoplus (Schw.) Sacc. 

 On leaves of Allium canadense L., in fields and woods 

 near Rensselaer. H. D. House, May 27, 1921. The fungus attacks 

 the leaves usually near or below the middle, sometimes higher up. 

 The leaf soon dies at the point of attack and the terminal portion 

 falls over and shrivels up. Subsequently the fungus invades prac- 

 tically the entire leaf. 



Macrosporium Martindalei Ell. & Mart. 

 Oneida, Madison county, on dead shoots of Liriodendron 

 Tulipifera L., associated with Myxosporium Lirio- 

 dendri Dearness & House, and a V e r m i c u 1 a r i a . H. D. 

 House, June 24, 1922. Macrosporium Martindalei was 

 described on the leaves of Magnolia glauca L. as having 

 spores 35-50 X 18-22 /x. The spores here are narrower, the widest 

 ones scarcely 18 //,, but otherwise agreeing with the description by 

 Ellis and Martin. 



Didymobotryum corticalis (Cooke & Peck) Dearness & House, 



comb. nov. 



Per icon ia corticalis Cooke & Peck. N. Y. State Mus. Rep't 29 : 

 52. 1878 

 Sporocybe corticalis Sacc. Syll. 4 : 604. 1886 



Near Lake Colden, Adirondack mountains, Essex county, on bark 

 of Thuja o c c i d e n t a 1 i s L. C. H. Peck, 1875 (type) . On 

 decorticated wood of Pin u s sp. Lake Pleasant, Hamilton county. 

 C. H. Peck. 



The spores in the type are about 8 x 2.75 fx, most of them are 

 continuous ; some are continuous and nucleate, some are septate, and 

 some are septate and nucleate. The application of the rule of sep- 

 tation, regarding the septate spores as the more mature, would 

 place this in the genus Didymobotryum. 



Tubercularia Ailanthi Cooke 

 On dead branches of A i 1 a n t h u s a 1 1 i s s i m a (Mill.) Swin- 

 gle (A. glandulosus Desf.), Albany. H. D. House, May 4, 1923. 



Hymenula Phytolaccae Berk. 

 Bethlehem, Albany county, on dead stems of Phytolacca 

 am eric an a L. C. H. Peck, October (year of collection not 

 indicated, and no notice of it appears in Doctor Peck's notebooks). 



