LACTARIAE OF THE UNITED STATES 11 
4. Pileus white, serm sparsely covered with coarse tomentum. 18. Z. lanuginosa. 
l Pileus buff, papillate when wet, squamulose when dry. 17. L. agglutinata. 
| Pileus olivaceous- SS 19. Г. /urfi. 
5. Pileus die owish to orange. 
| Pileu р 7 
| Pileu et аго 28. Г. hysgina. 
| 6. Zonate, spores тірі 24. L. insulsa. 
l Azonate, spores white. 25. Г. affinis. 
| 7. Wounds of the gills becoming glaucous-green. 8 
Wounds not changing, pileus zoned with umber. ing. 27. L. circellata. 
8. äs, gray to OE sometimes lilac- og ний yellow. 26. Г. trivialis 
sepia, spores w 20. Г. doen 
9. ак gray, gills not sui color where wounded. 39. L. cinerea. 
ileus red. то 
Pileus fulvous to pale-isabelline, plants small. II 
Pileus brownish, obscurely zonate, fading. 38. L. paludinella. 
IO. Flesh thick, pileus 4. L. quieta. 
Flesh thin, pileus ses dh йд when moist. 35. L. nitida. 
11. Umbo persisting dark, latex mild. 6. L. oculata. 
Umbo concolorous, margin aca milk acrid. 37. L. minuscula. 
с 
Latex becoming yellow, at least where in contact with the flesh 
1. Margin of young pileus with long tomentum. 2 
Lt e ша pileus glabrous ог minutely tomentose. 
2. Pileu 13. L. resima. 
Pilens yellowish, zonate, stem with bright pits. 12. L. scrobiculata. 
3. Latex mild. 68. L. isabellina. 
Latex slowly acrid or bitterish. 4 
tex acrid. 6 
4. Pileus та pinkish-buff to fulvous. до. L. theiogala. 
Von mate. 122% 
5. тын ish, not becoming perceptibly darker. до. L. theiogala. 
Заря whitish, then reddish-brown. ді. L. colorascens. 
6. Pileus umber-brown, subtomentose. . 56. Г. subtomentosa. 
Pileus some shade of yellow, glabrous. 7 
1 7. Pileus very viscid when moist. 8 
3 Pileus scarcely viscid, pallid, zoned with yellow spots. 42: 4. angele 
1 8. Pileus saffron-yellow, latex becoming yellow-cadmium. 15. Г 
Pileus ое, в salmon-tinted, latex becoming арыы ылу 
. L. delicata. 
Latex becoming lilac or heliotrope, at least where in contact with the flesh 
I. Pileus covered with long tomentum, zonate. 14. L. speciosa. 
Pileus glabrous 2 
[ 2. Gray 3 
| Yellow. 4 
3- Azonate or faintly zoned, stem not spotted. 22. L. lividorubescens. 
Conspicuously zoned, stem spotted, plants large. 23. L. maculata. 
