REPORT OF THE STATE BOTANIST FOR I924 79 



Hypoderma rufilabrum (B. & C.) Duby 

 Leptothyrella aceris D. &H. 

 Metasphaeria microecia E. &E. 

 Ombrophila set u lata D. &H. 



Diaporthe aorista E. & E. 



On dead stems of A s t e r 1 a t e r i f 1 o r u s (L.) Britton. Bona- 

 parte swamp. Lewis county, H . D. House, June 23, 1920. On dead 

 stems of S o 1 i d a g o m a c r o p h y 1 1 a Pursh, Indian Pass, 

 Essex county. H. D. House, July 15, 1923. 



The type of this species was collected at Newfield. N. J., on 

 host said to be Solidago."'' Saccardo" in compiling the species 

 wrongly credits it to New York State. The Indian Pass material, 

 except for the spore measurements, seems to agree better with the 

 published description of D. aorista than the specimens dis- 

 tributed in Fungi Columbiana no. 1043 ^^'^'^ North American Fungi 

 no. 3432. An odd sporidium is subappendiculate. and many of them 

 are larger than the measurements given in the original description. 

 They are nearly all flat on one side and rounded on the other, 

 instead of oblong as described. Diaporthe exercitalis 

 Peck is evidently closely related. 



Diaporthe Arctii (Lasch) Nits. 

 On dead stems of A r c t i u m minus Bernh. Peterboro, Madi- 

 son county. H . D. House, June 9, 1923. D . Arctii is described 

 as having inequilateral or slightly curved sporidia, and D . o r t li o - 

 c e r a s as having straight sporidia and longer ostiola. The sporidia 

 in the Peterboro material are straight, but the other features all 

 agree with the description of D. Arctii. 



Diaporthe disciformis (Hoffm.) Fr. 

 On dead branches of Amelanchier canadensis (L.) 

 Medic. Albany. H. D. House, April 6, 1923. Apparently an unre- 

 ported host for this fungus, which has been recorded from a 

 variety of hosts, chiefly in Europe (Saccardo gives Alnus, Betula, 

 Castanea, Fagus, Prunus, Rhamnus and Viburnum). It is recorded 

 from none of these host genera in New York. Doctor Peck's only 

 collection of it is on Acer s p i c a t u m Lam., from the Catskill 

 mountains, and Fairman-'- reports it from Lyndonville, on Ribes. 

 as forma r i b i n c o 1 a Rehm. 



■-"Bui. Ton-ey Bot. Club 24: 132. 1897. 



31 Syll. Fung. 14: 549. 1899. 



32 Fairman, Annales Mycologi 8 : 330. 1910. 



