I CLASSIFICATION OF AGARICS 



portion, apex a1 ftrsl pale violaceous, sunn white. SPORES oval 

 subglobose, slightly rough-punctate, 6-7.5x5.5-6.5 micr. 



in low, moist woods or Bwamps. Augusl September. Coniferous 

 regions. 1 ofrequent. 



This species corresponds closely with the European C. delibutus 

 Fr. which also has Subglobose spores, in the American planl the 

 spores are constantly a little smaller, as shown by two collections 

 from Sweden. In thai species the spores measure 7-8.5x6-7 micr. 

 Britzelmayr reports under the name C. delibutus, a species with 

 spores l I L6 x <i micr. Such a plant, with all other characters simi- 

 lar to c delibutus Fr., has been collected by me, bu1 qo1 sufficient 

 data are at hand to describe it. h is possible thai G. berlesianus 

 i Pk. i Sacc. of which the spores of the type specimens measure 7 8 x 

 6-6.5 micr.. is a Conn of the European C. delibutus Fr., but its stem 

 has a rounded bulb. 



314. Cortinarius vibratilis Fr. 

 Syst. Myc, 1821. 



[Uustrations: Cooke, 111.. Plate 744. 



Gillet, Champignons de France, No. 256. 

 Ricken, Blatterpilze, PL :•.."». Fig. l'. 



PI LEI rs 2 5 cm. broad, surface bitter to tin- taste, convex, obtuse, 

 gibbous, with a </liiti>>oiis />riii<h\ hygrophanous, yellow, ochre-yel- 

 low to fulvous-yellow, paler when dry. glabrous, even. FLESH soft, 

 thin except disk, white or whitish, bitter. <ilU.s adnate in slightly 

 subdecurrent or subemarginate, thin, close, rather narrow, pallid 

 to pale ochraceous, then pale ochraceous-cinnamon. STEM :: 7 cm. 

 Long, variable in Length, l LO mm. thick, subclavate <>r tapering 

 either way, soft, purr white, clothed when young by n glutinous, 

 hyaline, universal nil which soon dries, often viscid only at base, 

 soft-stuffed. SPORES narrowly elliptical, almost smooth, 6-7.5 x I •", 

 nucr. BASIDIA 26-28x7 micr.. L-spored. ODOB mild or subaro- 

 in.nic. TASTE of every part intensely bitter. CORTINA white. 



In conifer and frondose woods, among leaves or humus. 

 Throughoul the State. August-September, [nfrequent 



The American plant, named ( '. amarus by Peek, does not differ 



from c. vibratilis Fr. as it occurs around Stockholm. The spores, 

 bitter taste of all parts ami the hyaline gluten of the universal veil 

 are the same. C. amarus Pk. was originally referred to the Bub- 

 genus Phlegmacium (N. V. state Mus. Rep. 32, p. 30, 1879) but 



