REPORT OF THE STATE BOTANIST I9IO 61 



visible on the lower surface of the leaf ; perithecia minute, epiphyl- 

 lous, one or two on a spot, black; spores ellipsoid, 4-6 p- long, 



3-3.5 /^ broad. 



Living leaves of cultivated Amelanchier alnifolia 

 Nutt. Stockton, Kansas. September. E. Bartholomew. 



Closely related to Phyllosticta prunicola (Op.) Sacc, 

 P. m a h a 1 e b Thuem. and P. m e s p i 1 i Sacc. but easily distin- 

 guished by the peculiarly colored and very small spots and by the 

 small number of the perithecia on a spot. 



Maculae minutae, .5-1 mm latae, numerosae quandoque conflu- 

 entes, angulares aut suborbiculares, rufo-brunneae vel albidae, 

 infra vix visibiles; perithecia minuta, epiphylla, in aliqua macula 

 unum duove, atra; sporae ellipsoideae, 4-6 x 3-3.5 P* 



Russula eccentrica 



Pileus fleshy but thin, firm, eccentric or deformed, at first cen- 

 trally depressed, with even incurved margin, becoming nearly plane, 

 dry, glabrous, brownish or brownish gray, faintly reddish brown 

 when dry, flesh white, odor disagreeable ; lamellae thin, subdistant, 

 broad, adnate or adnexed, pallid or tinged with pink, becoming 

 reddish where wounded, reddish brown and subpruinose with age 

 or in drying ; stem smooth, equal, spongy within, white ; spores sub- 

 globose, even or nearly so, 6-7 p- in diameter. 



Pileus 5-10 cm broad; stem 4-6 cm long, 1.5-3 ^'^'^ thick. 

 Grassy ravine in open oak woods. Near St Louis, Missouri. 

 August. Rare and local. N. M. Glatfelter. 



This is the third species known in which wounds assume a red- 

 dish color. From Russula nigricans (Bull.) Fr. it dif- 

 fers in its dry and eccentric pileus not becoming blackish and from 

 R. d e n s i f o 1 i a Seer, in its eccentric pileus and subdistant 

 pinkish tinted lamellae. It belongs to the section Compactae. 



Pileus carneus, tenuis, firmus, eccentricus vel deformatus, primus 

 centro depressus, margine leve incurvato, deinde subplanus, siccus, 

 glaber, brunneus vel brunneo-griseus, siccitate leviter rufo-brun- 

 neus, carne alba, odore ingrato ; lamellae tenues, subdistantes, latae, 

 adnatae vel adnexae, pallidae vel subincarnatae, rufescentes ubi 

 vulneratae, in aetate vel siccitate rufo-brunneae et subpruinosae ; 

 stipes aequalis, levis, intus spongiosus, albus ; sporae subglobosae. 

 subleves, 6-7 p in diam. 



