SPECIES OB CRATERELLUS. 45 



Synopsis of the Species. 



1 Stem hollow, pileus mostly pervious. 2. 



2 Hymenium cinereous or brown. 3. 



3 Pileus tubiform, spores .0005 to .0007 in. Ioult. C. cornucopioides. 



3 Pileus funnel-shaped, spores .00025 to .0003 in. long. C. dubius. 



2 Hymenium yellow. C. lutescens. 



1 Stem solid, pileus not pervious. 4. 



4 Hymenium and stem similarly colored. C. Cantharellus. 



4 Hymenium and stem dissimilarly colored. C. clavatus. 



Craterellus cornucopioides Pers. 

 Cornucopia-like Craterellus. Horn-like Craterellus. 



Pileus thin, submembranous, tubiform, pervious, sometimes granu- 

 lar or minutely scaly, cinereous, smoky-brown or blackish, the spread- 

 ing or decurved margin generally lobed, wavy or irregular ; hyme- 

 nium even or rugose-wrinkled, cinereous or brown ; stem very short, 

 hollow, blackish-brown or black ; spores narrowly elliptical, .0005 to 

 .0007 in. long, .0003 to .0004 broad. 



Plant gregarious or subcsespitose, 2 to 3 in. high, pileus 1 to 2.5 

 in. broad, stem 2 to 3 lines thick. 



Woods. Common. July to September. 



This is our most common Craterellus. It is easily recognized by 

 its elongated tubular or narrowly trumpet-shaped pileus and its dingy- 

 gray or smoky-brown hue. The pileus is thin but rather tough and 

 elastic. The hymenium is generally a little paler than the pileus 

 and varies in color from cinereous to reddish-brown and dark smoky- 

 brown. It sometimes becomes pruinose when dry. The stem is 

 short or almost obsolete, the hymenium extending nearly or quite to 

 the surface of the ground. The spores are larger than in any of our 

 other species. It grows especially on naked soil on shaded banks or 

 knolls or in old roads in woods. In shape it corresponds very closely 

 to Cantharellus floccosus, but in every other respect it differs decid- 

 edly from that species. In color it resembles Cantharellus cinereus, 

 from which its more elongated pileus, shorter stem and different 

 hymenium at once separate it. Cantharellus cornucopioides Fr., 

 Peziza cornucopioides L., Merulius cornucopioides Pers., Merulius 

 purpureas With, and Helvetia cornucopioides Scop, are ancient 

 synonyms. 



Craterellus dubius Pk. 

 Doubtful Craterellus. 



Pileus thin, infundibuliform or subtubiform, subfibrillose, dark- 

 brown or lurid-brown, pervious, the margin generally wavy and 



