90 NEW YORK STATE MUSEUM 



darker, elongated conic-frustumoid, tip truncate, 125 /x wide, base 

 250 fi in diameter, height .5-1 mm, mostly about .7 mm. Conidia 

 hyaline, narrowly arcuate, attenuate-acute at both ends but more 

 acutely pointed at the upper end, obscurely septate. When stained, 

 I to 5, or usually 3 septa appear. Sometimes also nucleate, 35-60 x 

 23^ fi, mostly 45 X 2 /J,, on fasciculate, much branched conidiophores. 



Newcomb. Essex county, on dead branches of R h a m n u s 

 a 1 n i f o 1 i a L'Her. H. D. House, June 8, 1922 and June 20. 

 1923. Tahawas, August 13, 1924. 



Leptothyrella Aceris Dearness & House, sp. nov. 



Pycnidia thickly scattered, subcircular to elongate, situated in the 

 cortex and beneath the cuticle which it raises into pustules about 

 .5-.8 mm broad and .06 mm high ; conidia hyaline, uniseptate, nar- 

 rowly elliptic, 18-21 X 3 /x. on very slender conidiophores, 10-20 jx 

 long. 



Newcomb, Essex county, on dead twigs of Acer spicatum 

 Lam., associated with Ombrophila setulata. H. D. 

 House, June 8, 1922. 



Leptostroma Allii Dearness & House, sp. nov. 



Pycnidia scattered, black .4-. 5 mm broad, opening somewhat 

 variously by a nearly circular to elongate gap ; conidia hyaline, short- 

 oblong, 5-6 X 3 yLi, on basidia 8-9 x 2-2.5 M- 



On dead stems of Allium tricoccum L. East Greenbush, 

 Rensselaer county. H. D. House, April 15. 1921. 



Leptostromella Angelicae Dearness & House, sp. nov. 



Pycnidia brown, subcuticular, erumpent at the stoma or slit, 

 thickly scattered or seriate in close lines, 150-180 fj., where seriate 

 tending to become confluent and then elongating to 2 or 3 mm. 

 Conidia hyaline, hamate or merely curved at the upper end, 15-18 

 X i /A on long, fasciculate crnidiophores. the whisk broomlike units 

 60-75 ." in height, suggesting" Petasodes. 



On dead stems of Angelica atropurpurea L. North 

 Greenbush, Rensselaer county. C. H. Peck, May (year of collec- 

 tion not indicated). Internally this is hardly distinguishable from 

 Leptostromella rivana Sacc, which inhabits Acer 

 pseudoplatanus in Europe. 



