Parr 3, 1910] AGARICACEAE 
Latex acrid. 
Lamellae not staining where broken ; pileus fulvous, the margin crenate 
to sulcate. 
Lamellae staining glaucous- green ; pileus umber, sometimes tinged 
with lilac, fading, the margin entire. 
XIII. CINEREAE 
Latex white, not staining the lamellae; pileus plainly viscid when moist. 
Latex staining the lamellae glaucous- -green ; viscidity present only in wet 
weather. 
XIV. HELVAE 
Pileus floccose-squamulose, testaceous, fading to isabelline ; latex watery 
ae mild or subacrid, rarely white, ‘aromatic ; plants medium sized to 
arge. 
Pileus squamulose, fulvous to isabelline; latex white, acrid, odorless; 
plants small. 
Pileus coarse-velvety, brick-red to reddish terra-cotta, 
white, acrid. 
Pileus usually apparently glabrous, though minutely flocculose at first, 
red ; latex very acrid. 
Pileus umbonate. 
Pileus without an umbo; plants cespitose. 
zonate; latex 
XV. GRISEAE 
Plants without odor. 
Pileus azonate, gray to smoke-gray, minutely tomentose becoming floc- 
cose- -tomentose ; latex slowly acrid ; pileus up to 5 cm. broad. 
Pileus azonate, blue- black, then zoned with slate- -gray, or finally with 
snuff-brown, scabrous- pubescent; latex acrid; pileus not exceeding 
15 mm. in diameter. 
Plants more or less aromatic. 
Odor very pronounced ; pileus gray to pinkish-gray, minutely tomen- 
ees at first, never floccose, rarely zonate; latex slowly acrid; flesh 
ax 
Odor slight ; pileus dark-gray mixed with umber, minutely tomentose, 
never floccose, sometimes zonate; latex acrid; desh firm. 
XVI. PLINTHOGALAE 
Latex white, if changing not becoming yellow. 
Spores yellow. 
Latex or wounds becoming salmon-pink. 
Pileus snuff-brown or paler, pruinose. 
Pileus dark-brown, velvety 
Latex and wounds not changing color. 
Spores white ; latex and wounds not changing color. 
Latex white, becoming yellowish ; pileus subtomentose. 
Latex salmon-colored from the first; pileus whitish. 
XVII. LACTIFLUAE 
Pileus entirely glabrous. 
Pileus azonate. 
Pileus zonate. 
Pileus pruinose-velvety. 
Lamellae distant, not staining brown where injured. 
Lamellae close. 
Wounds staining brownish. 
Pileus Vandyke-brown to dead-leaf-colored, usually corrugated. 
Pileus yellowish-buff, smooth or very slightly rugose. 
Wounds not staining brown ; pileus golden-fulvous. 
XVIII. CaMPHORATAE 
Pileus azonate. 
Latex white, unchanging. 
Odor aromatic in drying, taste mild ; pileus red-brown. 
Odor none, taste subacrid to bitterish. 
Latex watery or whey-colored. 
Pileus brownish terra-cotta, fading, areolate. 
Pileus not becoming areolate. 
Margin even. 
Margin crenate to sulcate ; plants small. 
Latex white, becoming yellowish or staining the lamellae yellow ; pileus 
yellowish-buff. 
Pileus zonate when moist, rather large. 
42. 
43. 
45. 
53. 
54. 
BREEDS 
bh oh ND 
175 
. minuscula. 
. parva, 
cinerea. 
. varia, 
. helva,. 
. alpina. 
. Peckii. 
rufa. 
. rufula. 
. grisea. 
. Bensleyae. 
. glyciosma. 
. Hibbardae. 
. plinthogala. 
ligniota. 
Sumstinet. 
. Gerardii. 
. subtomentosa, 
. salmonea. 
lactifiua. 
. tchorata. 
. Avgrophoroides. 
. corrugis. 
luteola. 
. Subvelutina. 
camphorata. 
. Subdulcts, 
. rimosella, 
serifiua. 
. camphorata 
fragilis. 
tsabellina, 
. mutabilis, 
