Notes and Brief Articles 



41 



first incurved ; lamellae adnate, becoming slightly decurrent, nar- 

 row, not crowded, white ; stipe slender, hollow, pulverulent, white, 

 pubescent at the apex, mycelioid at the base, I— i .5 cm. long, less 

 than 1 mm. thick. 



Type collected on leaves and twigs of white cedar in a swamp 

 at Newfield, New Jersey, October, 1875, J- B - El ^ s (herb. N. Y. 

 Bot. Gard.). 



Distribution : Known only from the type locality. 



Omphalopsis pallida Murrill, sp. nov. 



Pileus conic to convex, becoming umbilicate, gregarious, 1.5 

 cm. broad ; surface dry, smooth, minutely silky, not striate, pallid, 

 pale-avellaneous on the disk ; lamellae decurrent, especially when 

 young, arcuate, distant, broad, white ; spores ellipsoid, smooth, 

 hyaline, 7-8.5 X 4-5 f*> stipe very slender, cartilaginous, equal, 

 smooth, hyaline, white, 2-3 cm. long, 1 mm. thick. 



Type collected in soil on a roadside bank at Lake Placid, Adi- 

 rondack Mountains, New York, October 3-14, 191 2, W. A. & 

 Edna L. Murrill 1093 (herb. N. Y. Bot. Gard.). 



Distribution : Known only from the type locality. 



For the benefit of those using Saccardo's nomenclature, the fol- 

 lowing new combinations are proposed : 



Gymnopus Ellisii = Collybia Ellisii 

 Omphalopsis pallida = Omphalia pallida 



W. A. Murrill. 



An Epidemic of Rust on Mint 



During the summer of 191 5, an epidemic of rust (Puccinia 

 Menthae Pers.) developed in gardens at Hanover, New Hamp- 

 shire. The disease was first discovered about the middle of June, 

 or about two weeks after the beginning of a long period of heavy 

 and almost continuous rainfall. The chocolate-brown sori broke 

 out on the leaves of the mint and increased with such rapidity 

 that by the early part of August the plants were rendered unfit for 

 table use. 



Since this is the first attack of the disease in this locality, at 

 least so far as the writer can determine, and since the rainfall was 

 far above that of a normal season, it became a matter of interest 



