42 



NORTH AMERICAN FLORA 



[Volume 10 



9. Limacella oblita (Peck) Murrill. 



Agaricus (Lepiota) oblitus Peck, Bull. Buffalo Soc. Nat. Sci. 1: 41. 1873. 



Pileus fleshy, convex or expanded, subumbonate, 5-7.5 cm. broad; surface smooth or 

 obscurely spotted or scaly from the rupturing of the universal veil, viscid, alutaceous inclining 

 to tawny, the umbo faintly darker; lamellae free, crowded, whitish or yellowish, some of them 

 forked; spores ellipsoid, smooth, hyaline, 5-6X3-4/*; stipe equal or slightly tapering upward, 

 smooth at the apex, floccose and viscid below, hollow or stuffed, 5-7 cm. long, about 6 mm. 

 thick; annulus obsolete. 



Type locality: Lowville, New York. 



Habitat: Deciduous woods. 



Distribution: Known onlv from the tvoe locality. 



Arr 



601 



1821. 



Vaginarius Roussel, Fl. Calvados ed. 2 59. 1806. Not Vaginaria Rich. 

 Fusispora Fayod, Ann. Sci. Nat. VII. 9: 351. 1889. 

 Mastocephalus Batt.; O. Kuntze, Rev. Gen. 2: 859. 1891. 



1805. 



Pileus soft, fleshy, putrescent, never viscid, usually squamulose or pruinose ; lamellae free, 

 rarely varying to adnate; spores hyaline, rarely tinged with yellow or brown; veil present, 

 usually forming an annulus; stipe central, usually hollow and enlarged below; volva none. 



Type species, Agaricus procerus Scop. 



Pileus granulose or verrucose with swollen vesicles. 



Pileus pruinose, fibrillose, or pulverulent, rarely glabrous, never granulose 



nor squamulose. 

 Pileus conspicuously long-striate, thin, squamulose. 

 Pileus squamulo.se, not conspicuously striate. 

 Annulus fixed or evanescent. 



Scales appressed, scattered or imbricate. 

 Scales prominent, reflexed or pointed. 

 Annulus movable, persistent ; pileus large with large scales. 



I. Granulosae 



Pileus 1-2 cm. broad; species confined to tropical America. 

 Pileus 2-6 cm. broad; species confined to temperate regions. 



I. Granulosa^ 



II. Pruinosae. 

 III. Striatal. 



IV. Sqtjamtjlosae. 



V. Acutesquamosae 



VI. Procerae. 



1. L. aspratella. 



2. L. amianthina. 



II. Pruinosae 



Pileus small, 1-3 cm. broad. 

 Stipe glabrous. 



Species confined to the United States. 

 Pileus entirely milk-white, unchanging. 

 Surface glabrous. 

 Surface densely pulverulent. 

 Pileus tinged with rose or pink. 



Pileus white with pinkish disk, unchanging, 4—8 mm. broad. 

 Pileus white with a rosy tint, rosy -cinereous on drying, 3 cm. 

 broad. 

 Pileus tinged with yellow or brown. 



Stipe white, clavate; spores 7-8.5 fi long. 

 Stipe pale-umber below, equal; spores 4—5 ju long. 

 Species confined to tropical America. 

 Pileus entirely white. 

 Spores ovoid, 5 /x long. 

 Spores broadly fusiform, 7-8 jj, long. 

 Pileus pale-testaceous. 



Pileus 1 cm. broad; stipe and annulus testaceous. 

 Pileus 4 mm. broad; stipe and annulus white. 

 Pileus avellaneous to fuliginous. 

 Pileus umbonate, 1—2 cm. broad. 

 Pileus not distinctly umbonate, 3 cm. broad. 

 Stipe pulveraceous or furfuraceous. 

 Pileus whitish or pale-pinkish. 

 Pileus 4-8 mm. broad, whitish. 

 Pileus 1.5-3 cm. broad. 

 Lamellae free, broad. 

 Lamellae reaching the stipe, narrow. 

 Pileus white with isabelline powder; lamellae becoming fumosous 

 on drying. 



3. L. rufipes. 



4. L. hemisphaerica 



5. L. cristatella. 



6. L. roseicinerea. 



7. L. juniperina. 



8. L. neophana. 



9. L. lactea. 



10. L. colimensis. 



11. L. subgranulosa 



12. L, testacea. 



13. X. rimosa. 



14. L. Broadwayi. 



15. L. pusillomyces. 



16. L. petasiformis. 



17. L. seminuda. 



18. L. fumosifolia. 



