Genus Lepiota 325 



V. CLYPEOLARIAE 



1. Spores fusiform or subfusiform 2 



1. Spores not fusiform 6 



2. Pileus (2) 3-5 cm. broad 3 



2. Pileus 1-2 (3) cm. broad 5 



3. Spores 21-26(30) X 5-6 (7) n; gills narrow; pileus or scales cinna- 



mon-brown (See description.) L. fusispora, sp. nov. 



3. Spores rarely 20 fi long 4 



4. Pileus subglobose, yellowish-tawny; stem stout, 6-10 mm. thick, 



yellowish, densely clothed with erect white flocci up to the floc- 

 cose annulus; spores 12-14 x 4-5 fj. L. praiensis Fr.-Rea 



4. Pileus fioccose-scaly, creamy-yellowish; stem 3-6 mm. thick, 



sheathed with a dense floccose tomentum up to the floccose annu- 

 lus; spores 10-16 (18) x 4-6 p, L. dypeolaria P>.-Kauff. 



5. Pileus brownish, fioccose-scaly, 1-2 cm.; gills broad, rather distant; 



stem 1 mm. thick; spores 11-13 x 4-5 p 



L. floralis Berk. & Rav.- Beardslee 



5. Pileus or scales black, 2-3 cm.; spores 8-10 x 3-4 p; in conifer 



forest L. felina Pers.-Ricken 



6. Spores projectile-shaped (i.e., rounded-enlarged at one end, narrowed 



and pointed at the other) 7 



6. Spores not projectile-shaped 9 



7. Pileus 5-8 cm. broad, silky, glabrescent; whole plant white; gills 



broad; stem 6-8 mm. thick; annulus submedian, floccose-mem- 

 branous, reflexed, striate above; spores 12-14 x 6-7 p, apiculus 

 recurved L. alba (Bres.) Sacc. 



7. Pileus 1-2 (3) cm. broad 8 



8. Spores 9-11.5 (13) x 4-5 p; gills or flesh turning brownish-red with 



age; pileus subglabrous to somewhat felty, 1-2 cm., brown to 

 reddish-brown L. castanea Quel.-Lange 



8. Spores 7-8 x 3-4 p; pileus and stem white to rose-tinted, changing 



to chestnut-brown on drying; stem 2-5 mm. thick; collected in 

 Washington state L. castanescens Murrill 



9. Spores truncate at one end 10 



9. Spores ellipsoid to oblong 13 



10. Spores truncate at apiculate end, so as to be minutely bicornate, 



8-9 p long 11 



10. Spores truncate at broader end, narrowed to subcuneate at the 



other end 1^ 



11. Edge of gills purple-pruinate ; pileus 3-4 cm., fawn-color, densely 



and minutely scaly; annulus cottony; in conifer forests; sub- 

 caespitose L. Boudieri Bres. 



11. Edge of gills concolor; pileus 1-2 cm., mammillate, finely tomentose 



or with fine reddish-brown scales; odor of balsam 



L. castanea Quel. -Bres. 



12. Spores 8-11 x 3-4 p; pileus 1-2.5 cm., cinnamon-rufous to tawny. 



See ("Comments.") L. acerina Pk. 



12. Spores 6-8 x 2.5-3 p; pileus 4-8 cm., brown to tawny-olive, dif- 



