WHITE-SPORED AGARICS. 107 



growing from a hollow in an ash, and Stevenson (p. 167) reports the 

 same condition. 



Pleurotus sulfureoides Pk. This rare species, first collected in the 

 Catskill Mountains 1869, and described by Peck in the 23rd Report, 

 N. Y. State Mus., p. 86, 1870, was found by me on two different 

 occasions at Ithaca, N. Y., during the autumn of 1898, on rotting 

 logs, Ithaca Flats, and again in Enfield Gorge, six miles from Ithaca. 

 The plants are from 5-8 cm. high, the cap 3-5 cm. broad, and the 

 stem 5-7 mm. in thickness, and the entire plant is of a dull, or pale, 

 yellow. 



The pileus is nearly regular, fleshy, thin toward the margin, con- 

 vex, umbonate, smooth or with a few small scales. The gills are 



Figure 1 1 1. Pleurotus sulfureoides. Entire plant dull or pale yellow (natural 

 size). Copyright. 



rather crowded, broad, rounded or notched at the stem, pale yellow. 

 The spores are elliptical, 7-9 x 5-6 yu. The stem is ascending and 

 curved, nearly or quite central in some specimens in its attachment 

 to the pileus, whitish or yellowish, mealy or slightly tomentose at 

 the apex. 



Figure in is from plants (No. 2953, C. U. herbarium) on rot- 

 ting log, Ithaca Flats, October, 1898. 



Pleurotus petaloides Bull. Edible. The petal-like agaric is so called 

 from the fancied resemblance of the plant to the petal of a flower. 

 The plant usually grows in a nearly upright or more or less ascend- 

 ing position, or when it grows from the side of a trunk it is somewhat 

 shelving. It is somewhat spathulate in form, i. e., broad at the free 



