CLASSIFICATION OF AGARICS 177 



(aaa) Pileus and stem not viscid nor glutinous (slightly vis. id In 

 //. amygdalinus) . 

 (b) Odur markedly noticeable. 

 (c) Stem solid; pileus grayish-brown ; gills adnate decurrent; odur 



of almonds. H. amygdalinus Pk. 

 (cc) Stem stuffed tiien hollow; pileus hygrophanous, 



(dl ('.ills d. 'current ; pileus sooty brown i n ; por< BUb 



globose, 5-6 mlcr.; odor "peculiar." //. peckianus II 

 (dd) Gills Binuate-adnexed ; pileus yellowish-brown (moist), odor 

 offensive. //. mephiticiu Pk. 



(bb) Odor not marked; stem solid. 



(C) Plant stout; pileus smoky or hlackisli. rlrgate with flbl 

 spores 8-9x5 mlcr. //. carpinus FY. 



(CC) Plant slender; pileus Krayish lirown to blackish lirown. glab- 

 rous; spores 10-12x6-7 mlcr. //. nigridiu* Pk. 



(Peck in his monograph, N. Y. State Mus. Bull. 116, L907, of New 

 York species mentions the following as very rare: //. virgatulua Pk., 

 //. burnhami Pk., //. metapodiua Ft., II. httsitlin.su* Pk., //. sub- 

 rufescens Pk., //. immutabilis Pk., //. laricinus Pk., //. luridua B. 

 & c. //. minutulus Pk. Peck has described also //. serotinus Pk., 

 //. ruber Pk., //. albipes Pk., from Massachusetts; II. elegantulus 

 Pk. from Maryland and //. sphoerosporus Pk. from fowa.) 



SUBGENUS LIMACIl 1/ : Provided with a glutinous universal 

 veil or a floccose cortina or both. Trama of gills of divergent 

 hyphae. 



Section I. Universales 



Provided with both a universal veil and a floccose cortina : the lat 

 ter is connate to the inner surface <>\' the runner along the stem, 

 sometimes forming a slight annulus at the apes of the stem, or a 

 floccose-downy edge on the incurved margin of the pileus. stem 

 viscid, Bubglabrous to floccose-fibrillose, shining or glistening-spot 

 hi/ when dry, apex scabrous-dotted or Bubglabrous. 



This section is intended to include only those with a universal 

 veil, h corresponds to the subgenus Myxacium of the genus Cor 

 tinarius. This veil surrounds the very young button as a thick 

 gelatinous layer, which becomes attenuated on the Btem as this 

 elongates and dissolves into a hyaline, or, in some Bpecies, into n 

 somewhat colored gluten in wet weather. The apex of the stem 

 is glandular or scabrous-dotted in those species in which the margin 

 of the pileus is at firsl inrolled, but in those in which the margin of 

 the pileus is merely incurved and continuous with the cortina, the 

 apex of the stem is Bubglabrous and not floccose dotted. //. 

 is an example of the latter group. 

 23 



