SUBSECTION CAMAROPHYLLI 329 



hvphae, an ixocutis. Pileus trama of radially disposed hyphae. Clamp 

 connections present on the cuticular hyphae. 



Habit, Habitat, and Distribution — On soil, under bear-grass 

 near snow bank, Idaho, June; also Europe. 



Material Studied — idaho: Smith 58365. France: Heinemann 

 2666. Switzerland: Huijsman, May 3, 1958. Austria: Moser, April 15, 

 1951 (Hesler 24131). 



Observations — The Idaho collection (Smith 58365) agrees well 

 with the collections from France and Switzerland. In each collection 

 the pileus, under a lens, is virgate. Gill color and microscopic characters 

 are similar. In the American material the pileus cuticle in section 

 shows a narrow gelatinous zone; in the French specimen the pileus 

 cuticle shows either no gelatinous hyphae or onlv a very narrow layer; 

 in the material from Switzerland there is a narrow but definite 

 gelatinous zone. Bresadola (1928) says the pileus is subviscid, soon 

 dry. It is interesting to note that Smith found his collection in June, 

 near snow; and in Austria, Moser (1955) reports it in the early spring 

 after melting snow. 



Hygrophorus marzuolus is related to H. camaropkyttus in which 

 the pileus is also virgate, but darker from the beginning, the 

 lamellae closer (close to sometimes subdistant), and the spores some- 

 what longer. H. agathosmus has the pileus glutinous to viscid, the 

 context has a distinctive amvgdaline odor, and the spores are slightlv 

 longer. 



200 



Hygrophorus ellenae, sp. nov. 



Pileus 2.5-6 cm lotus, convexo-depressus, margo involutus deinde 

 parum similis infundibulo, albus deinde tinctus luteo colore, parum 

 viscidus, mox siccus; odore et gustu mitis; lamellae arcuatae demum 

 decurrentes, angustae vel medio-latae, subdisfantes, albae deinde 

 tinctae luteo colore; stipes 5-9 cm longus, (2)4-12(15) mm crassus, 

 siccus, albus, apice sericus vel pruinosus; sporae 7-9.5(10) X 4^4.5(5) 

 ft, imagine obliqua rum aequilate rales, in fronte subocatae. Specimen 

 typicum in Herb. Univ. Mich.: ledum prope Summit, Boise National 

 Forest, Idaho. June 15, 1958, Ellen Trueblood 307. 



Pileus 2.5-6 cm broad, broadlv convex-depressed with an inrolled 

 margin, shallowly infundibuliform in age, margin often becoming un- 

 dulating or wavy, surface smooth and shining, white, slowly developing 

 a tinge of apricot, slightly viscid when moist but soon dry. Context 

 white, soft; odor and taste not distinctive. 



Lamellae arcuate to decurrent, narrow to onlv moderatelv broad, 



