CLASSIFICATION Ol' ACAK1CS 231 



lotus there are only one or two rows of abruptly differentiated cells 

 with Large, clavate, ered cystidia-like cells intermingled. The 

 species has qo1 been aniformly conceived by differenl authors and 

 needs further comparison, h is said to be very common in Europe 

 :iihI is widely reported in this country. The majority of authors 

 give the same spore-size ;is Ricken. 



221. Panoeolus papillionaceus Fr. (SUSPECTED 



Epicrisis, L836-38. 



Illustration ; Ricken, Biatterpilze, PI. 69, Pig. ::. 



"PILEUS 2 l mi. broad, subhemispherical, '// length expanded, 

 never viscid nor hygrophanous, "/ length rimose-scaly <>>■ areolate, 

 pallid <>>• sordid irhitisli to smoky-gray or brownish-pallid, margin 

 with evanescent, pallid veil. FLESH slightly thick, white. <;iu,s 

 broadly adnate, often very broad, ventricose, close, variegated gray- 

 blackish from the spores, at length black. STEM 6-8 cm. long, 2-5 



nun. thick, CartUaginOUS-tOUghish, rigid, hollow, somewhat attenu- 

 ated, whitish, with brownish hast', apex striate and w hite-pruinose. 

 SPORES lemon-shaped, 15-18x9-11 micr., smooth, black." 



The description is adopted from Ricken. The spores are some 

 what more narrow according to most authors. This species seems 

 in be in frequent with us. Small forms occur which may he referred 

 here, in which the pileus is less than a centimeter broad and the 

 spores are smaller. The species is not too well known. Its main 



character seems to be the whitish stem hut do doubl the forms with 



such a stem need segregation as shown by some of my collections. 



222. Panoeolus sp. 



PILEUS t-2.5 cm. broad, campanulate, obtuse, not expanded. 

 1-1.5 cm. high, hygrophanous, bibulous, smoky gray when moist, 

 livid buff when dry, glabrous, dull and subpruinose, ;it length coarse 

 ly crenate-wavy when dry; veil absent or fugacious. FLESH 



thickish, rather linn. COnCOlor I moist i, then pallid. GILLS 



rounded behind, adnate-seceding, not broadly attached, ventric* 

 crowded, gray then variegated black, edge white-flocculose. STEM 

 5-7 cm. long, Blender, l-i' mm. thick, equal, rigid fragile, flexuous or 

 straight, hollow, livid smoky-gray, concolor within, pruinose, gla- 

 brescent, base white-mycelioid. SPORES elliptical, ventricose, 9 l" 



