CLASSIFICATION OF AGARICS 



616. Leptonia rosea Longyear 

 Mich. Acad, of Sci. I ; * -j >. ::, L902. 

 Illnsirai ions : I bid, Plate I. Fig. 5. 



Plate CX [V of this Report. 



PILEUS L.5-3.6 cm. broad, convex, then expanded, depressed or 

 subumbilicate at center, noi striate, ros< color when young, fading 

 to isabelline with reddish umbilicus, minutelj fibrillose-scaly, espe 

 cially at center. FLESH thin, white. GILLS adnate with Blight 

 tooth, dose, moderately broad, ventricose, broadest behind whiU 

 then flesh color. STEM 5-8 cm. long, slender, scarcely 1.5 nun. 

 thick, equal, cartilaginous, glabrous, stuffed, appearing solid, pale 

 roseate, white-mycelioid at base, subpellucid-striatulate. SPORES 

 angular, 10-12x7-8 micr., flesh color in mass. 



Scattered. On sphagnum, in cedar and tamarack swamp (35 

 specimens). Bay View. "Burnl ground on a sand; hillside. Kent 

 County. Longyear." July-September. Rarely seen. 



The difference in habital of the two localities where this has been 

 found is remarkable. My own collection was made entirely on 

 thick sphagnum, but Longyear found the two type specimens on 

 burnt-over sandy soil. lis pretty colors are attractive and it is 

 not easily mistaken. Gillet's figure of \olanea rufocarnea Berk. 

 reminds one somewhat of /-. rosea, bu1 our species is a true Lep- 

 tonia with a non-striate pileus, without the bitter taste of V. 

 rufocarnea and with a different color. 



617. Leptonia seticeps Atk. 

 Jour, of Mycol., Vol. 8, 1902. 



PILEUS 1 :'. cm. broad, convex to expanded, umber to brownish 

 gray, darker on disk, faintly and finely long-striatt . minutely granu- 

 lose under a lens, margin somewhat incurved at first. FLESE whit- 

 ish, very thin, composed of two layers, surface layer of oval or 

 clavate long-pediceled cells mixed with longer, lanceolate to fusoid 

 • ells, nil with smoky content. GILLS slightly adnexed or free, 

 subdistant to close, broad, elliptical, while then flesh color, edge 

 eroded) the trama composed of converging hyphae. STEM short, 

 1-2 cm. long, 2-3 mm. thick, glabrous or sometimes villose-dotted, 

 whitish or brownish, subcartilaginous, solid, fibrous-strii |ual 



or bulbilose, straighl or curved, sometimes slightly 



