Part 3, 1910] AGARICACEAE 187 
33. Lactaria subpurpurea Peck, Ann. Rep. N. Y. State 
Mus. 29: 43. 1878. 
Pileus fleshy, convex-umbilicate, then plane to infundibuliform, 3-8.5 cm. broad; sur- 
‘face dark-red (Indian-lake) zoned with hydrangea-pink, less noticeably zonate with age, and 
approaching hydrangea-pink except on the extreme margin which becomes Etruscan-red, 
spotted more or less with emerald-green when mature, somewhat viscid when wet, gla- 
brous; margin involute and pruinose at first, then plane to uplifted: context somewhat 
firm, whitish to hydrangea-pink, instantly staining red next the lamellae and the surface of 
the stem, becoming greenish after some time, with a slight odor, edible; latex Morocco- 
red, rather mild; lamellae colored like the pileus, fading and greenish with age, seldom 
forking, rather distant, slightly decurrent, 6-7 mm. broad; stipe of the same color as the 
pileus, often spotted with dark-red, equal or tapering upwards, glabrous or pruinose, some- 
times tomentose at the base, stuffed, becoming hollow, 3-7 cm. long, 8-15 mm. thick: 
spores yellowish, broadly elliptic, echinulate, often uniguttulate, 7-8 X 8-10 #. 
TYPE LOCALITY: New York. 
Hasitat: Usually in moist woods in the vicinity of hemlocks. 
DISTRIBUTION: New York, Vermont, Massachusetts, Connecticut, and North Carolina. 
ILLUSTRATIONS: Ann. Rep. N.Y. State Mus. 54: pl. 70, f. 146; Mem. Torrey Club 14: 61. f. 8. 
Exsiccatr: Burl. Lact. N. Am. 22. 
34. Lactaria Indigo (Schw.) Fries, Epicr. Myc. 341. 1838. 
Agaricus (Lactifluus) Indigo Schw. Schr. Nat. Ges. Leipzig 1: 87. 1822. 
Pileus fleshy, convex-umbilicate, becoming plane to infundibuliform, 5-12cm. broad ; 
surface indigo-blue when wet, fading when dry, often with a grayish luster, zonate, some- 
times spotted; margin naked: context firm, sky-blue to darker, often becoming greenish, 
edible ; latex dark-blue; lamellae indigo-blue or paler, at length yellowish or sometimes 
tinged with green, some forking near the stipe, close, somewhat decurrent, rather broad; 
stipe of the same color as the pileus, often spotted, nearly equal, glabrous, smooth, firm, 
becoming hollow, up to 5 cm. long, 1-2 cm. thick: spores yellowish, globular to broadly 
elliptic, echinulate, 7 X 8-9.5 yu. 
TYPE LOCALITY :. North Carolina. 
HagitaT: In dry pine or oak woods. 
DISTRIBUTION : Eastern United States, from Vermont to Florida. 
ILLUSTRATIONS: Atk. Stud. Am. Fungi pl. IS, f.3; Mcllv. Am. Fungi pé. 41, f. 2. 
XI. Theiogalae. Pileus rather broad ; margin involute at first and naked or pruinose 
to pruinose-downy ; surface whitish to isabelline, pinkish-buff, or fulvous, slightly viscid 
when moist, soon dry, glabrous: context firm, thick, becoming lax and thinner; latex 
white, becoming yellow, bitter or acrid; lamellae becoming darker with age and more or 
less pruinose. 
35. Lactaria theiogala (Bull.) Fries, Epicr. Myc. 342. 1838. 
Agaricus theiogalus Bull. Hist. Champ. Fr. 495. 1809. 
Hypophylium lateritium Paulet; Paulet & Lév. Ice. Champ. 59. 1855. 
Lactaria brevipes Longyear, Rep. Mich. Acad. Sci. 3: 59. 1902. 
Lactaria brevis Peck, Bull. N. Y. State Mus. 94: 33. 1905. 
Lactaria xanthogalacta Peck, Bull. Torrey Club 34: 346. 1907. 
Pileus fleshy, rather thick at first, convex, sometimes with a small umbo, sometimes 
slightly umbilicate, then plane to depressed, 5-8 cm. broad; surface incarnate-isabelline to 
yellowish-salmon or reddish terra-cotta to fulvous, more or less zonate, occasionally much 
paler and nearly or quite azonate, viscid when wet, glossy when dry, glabrous; margin 
inrolled at first, and pruinose to very minutely pruinose-downy on the extreme edge: 
context firm, then more lax, white, becoming yellow from the latex, having a pungent 
odor in the fresh plant, probably poisonous; latex white, changing to sulfur-yellow, 
bitterish, then acrid; lamellae whitish to yellowish, reddish-brown when old or when in- 
jured, some forking near the stipe, close, adnate, or a little decurrent, up to 4 mm. broad; 
stipe colored like the pileus or paler, sometimes faintly spotted, glabrous, except at the 
base which is often slightly tomentose, smooth, stuffed and rather firm, at length hollow, 
