CLASSIFICATION OF AGARICS 



Michigan. The above description is taken from mj notes of the 

 Swedish plant as known to Komell, and agree mostly with thai of 

 Bresadola. Most modern mycologists consider thi/ FViesian 

 "rugulose-reticulate" character of the stem as too uncertain to be 

 practicable. The importan1 characters are: the hard consistei 

 the wrinkled or veined rarely "cutefracta" surface of the cap, the 

 cuticle in it reaching to the margin of the c;i|>, and the gills die 

 colored in spots. The cuticle apparently ceasi - to gro\i so thai the 

 surface of the expanding pileus may become somewhal areola te 

 cracked and the margin uaked. 



115. Russula subpunctata sp. nov. 



PILEUS 2-5 cm. broad, rigid, convex then expanded plane to i 

 pressed, cuticle adnate and scarcely separable on margin, Bubviscid, 

 soon dry, pah dullred to rosy-red, of ten white-spotted where cuticle 

 disappears, minutely rivulose or subgranular, margin even, acute. 

 FLESH compact, firm, rather thick on disk, abruptly thin on 

 margin. GILLS adnate to subdecurrent, thin, slightly attenuate 

 at both ends, not broad, (dose to subdistant, whitish then pah 

 cream-colo red, few short or forked at base, pruinose, interveni 

 STEM 2-4 cm. long, HO nun. thick, subequal or tapering down, 

 spongy-stuffed, becoming cavernous, while or rosy-tinged, unchang- 

 ing, attached a1 times to roots and forming mycorhiza. SPORES 

 subglobose, rough-reticulate, 9-11x7-9 micr. (incl. apiculus), creamy- 

 white in muss. CYSTIDIA abundant, subcylindrical, rough, with 

 dark brown granular content. 90-110x8-12 micr. BASIDLA about 

 65x9 micr. Subhymeniwm markedly differentiated. TASTE quickly 

 anil very aaid. < >I>< )\l none. 



Gregarious. <)n the ground in frondose woods. Ann Arbor. 

 July-August. Enfrequent. 



Tlie appearance <»r this Russula is well shown in Patouillard'a 

 figure of /.'. punctata Gill. (Tab. Analyt., No. 621) with which it 

 agrees except in its very acrid taste. The gills of our plants have only 



rarely a red edge. The spore prinl is cream colored or al si lighl 



yellowish. Dr. McDougal found one group of specimens fom 

 mycorhiza <>n roots of Tilia americana. 



Micro-chemical tests: <;. (Flesh slowly lighl blue; gills 

 affected.) S. V. (Flesh and gills quickly deep blue. I' > I dia 

 colored brown, i 



