172 NORTH AMERICAN FLORA [VoLUME 9 
8. PLICATURELLA Murrill, gen. nov. 
Hymenophore sessile or subsessile, subfleshy : lamellae obtuse, fold-like, not covered 
with a veil: spores ferruginous. 
Type species, Chanterel olivaceus Schw. 
1. Plicaturella olivacea (Schw.) Murrill. 
Chanterel olivaceus Schw. Trans. Am. Phil. Soc. II. 4: 153. 1832. 
Pileus subfleshy, dimidiate, subimbricate, slightly depressed, 2.5-4 cm. broad, 3-4 mm. 
thick, sessile or attached by a short thick stipe, which is black and strigose ; surface yel- 
lowish-green, pulverulent or finely pubescent, margin subinflexed, undulate or lobed: 
context homogeneous, olivaceous, fragile when dry, 2.5-3 mm. thick: lamellae anasto- 
mosing, dichotomous or branched, crowded, rather broad, orange-yellow to reddish-brown : 
spores ovoid, smooth, ferruginous, 5 X 44. 
TYPE LOCALITY: Salem; North Carolina. 
Hapitat: On the ground (probably attached to roots) and on hemlock logs. 
DISTRIBUTION: North Carolina and Tennessee. 
Lore neuron 
9. -GHEOROPHYLLUM Murrill, gen. nov. 
Hymenophore fleshy-tough, putrescent; pileus depressed ; lamellae fold-like, obtuse, 
anastomosing, veil wanting: spores green; cystidia present: stipe central. 
Type species, Neurophyllum viride Pat. 
PEW? Ore 
1. Chlorophytt1m viride (Pat.) Murrill. 
Neurophyllum viride Pat. Jour. de Bot. 2: 406. 1888. 
Pileus fleshy-tough, circular in outline, depressed at the center, deeply lobed, centrally 
stipitate, 6-8 cm. broad, 10-12 cm. high; surface dark-green, glabrous, margin very irreg- 
ular: lamellae thick, plicate, numerous, anastomosing, branched, decurrent, dark-green : 
spores ovoid, at first smooth, later covered with anastomosing ridges, yellowish-green, 
13-14 X 6-7“; cystidia cylindric, obtuse, projecting, containing at the apex some green 
granules: stipe central, concolorous, fibrous, villose near the base, gradually expanding 
upward, 8-15 mm. thick. 
TYPE LOCALITY: French Guiana. 
HasitaT: On the ground or upon dead wood in wet woods. 
DISTRIBUTION: French Guiana and Martinique. 
ILLUSTRATION: Pat. Tab. Anal. 0. 650. 
Tribe 2, LACTARIEAE."  Hymenophore convex at first, expanding, some- 
times becoming infundibuliform, stipitate, terrestrial or rarely on decaying: 
logs, or on tree-trunks; context fleshy, vesiculose, continuous in the pileus, 
stipe and trama, sometimes lactiferous, often acrid in taste, putrescent: hy- 
menium lamelloid, lamellae acute on the edge, brittle, adnate or only slightly 
decurrent ; stipe central or rarely eccentric, fleshy, never fibrous, solid or 
stuffed, becoming hollow, without annulus or volva: spores white or yellow, 
globose to broadly elliptic, often echinulate. 
Content uot leeuferousl i Boesera 
10. LACTARIA’ Pers. Tent. Disp. Fung. 63. 1797. 
Lactifluus Roussel, Fl. Calvados ed. 2. 66. 1806. 
Galorrheus Fries, Syst. Orb. Veg. 75. 1825. 
Lactariella Schriét. Krypt. Fl. Schles. 31: 544. 1889. 
Gloeocybe Earle, Bull. N. Y. Bot. Gard. 5: 409. 1909. 
Pileus fleshy, continuous with the stipe ; surface sometimes zonate, either dry or viscid, 
glabrous, velvety, or tomentose; margin involute in young plants, then spreading or 
1By GERTRUDE SIMMONS BURLINGHAM. 
* Often written Lactarius, here regarded as a mere variant spelling, 
