REPORT OF THE STATE DOTANIST I906 1/ 



Crataegus glaucophylla Sarg. 

 C. intricata Lange 



C. matura Sarg. 



Crataegus niodesta Sarg. 

 C. pentandra Sarg. 



C. pruinosa JVciidl. 



Crataegus tenclla .-Jslw 



SPECIES NOT BEFORE REPORTED 



Allionia hirsuta Pursh 



Near Rochester. August. M. S. Baxter and V. Dewing. Intro- 

 duced from the western states. It is Ox y b a p h u s h i r s u t u s 

 Sweet. 



Amanitopsis pulverulenta n. sp. 



Pileus thin, convex becoming nearly plane, pulverulent, scjuaniose 

 in the center, even on the margin, white or ci^eamy white, odor 

 feeble or none ; lamellae thin, unecjual, narrowed behind, free or 

 nearly so, moderately close, subventricose, whitish ; stem equal or 

 slightly tapering upward, bulbous, solid, pulverulent or fur- 

 furaceous, white ; spores subelliptic, .0003-.0004 of an inch long, 

 .0002-.00024 broad. 



Pileus 1-2 inches broad ; stem 1-2 inches long. 2-^ lines thick. 

 Shaded banks by roadsides. Port Jefferson. Suffolk co. August. 



This species is well marked by its white color and the copious 

 mealiness of the pileus and stem. It is apparently closely related 

 to Amanitopsis p u b e s c e n s ( Schw.) but it dift'ers from 

 the description of that species in having the pileus and stem pul- 

 verulent instead of pubescent and in the former being scjuamose in 

 the center. There is no annulus and the slight remains of a mem- 

 branous volva are seen in very young s])ecimens only. In the dried 

 specimens the lamellae have assumed a pale yellowish cinnamon 

 hue. 



Ascochyta pisi Lib. 



Living pods of peas and beans. Menands, Albany co. July. 

 This parasitic fungus produces discolored spots on the pods similar 

 to the anthracnose spots of bean pods, but the spores of this fungus 

 are uniseptate, those of the anthracnose, simple. 



Aster arcifolius Bu. 

 Lake Minnewaska, Ulster co. September. Prof. E. Burgess 

 has made a special study of the asters of our country and his re- 

 vision and elucidation of the Biotian division of the genus enables 



