Harper—Additional Species of Pholiota. 411 
the substance of the pileus. Annulus a few threads stained 
black with spores. 
Damp places in woods, single or caespitose. Plants 8—12 
cm high. Cap 6—10 cm broad. Stem 6—10 mm in thickness. 
2. Hypholoma boughtoni Pk. PI. XXI, ABC. 
The plants agree with Peck’s illustration, N. Y. State 
Mus. Bull. 139, pi. II. They have the tawny brown, innate 
fibrous, areolately or concentrically cracked pileus. Other¬ 
wise the characters are those of the group, dark brown opaque 
tuberculate apiculate spores, gills white floccose on the edges 
and distilling drops of water, universal veil covering the 
stem and pileus, concrete with the cortex and forming a 
scanty annulate appendiculate veil. Peck’s description 
reads: 
‘‘Pileus fleshy, thin except in the center, broadly convex 
or subhemispheric, rarely with a slight umbo, glabrous or 
slightly fibrillose, often concentrically or areolately cracking, 
pale reddish brown or grayish brown. Flesh whitish. Taste 
disagreeable. Lamellae unequal, moderately close, adnate, 
purplish brown, seal brown or blackish, obscurely spotted, 
whitish on the edge. Stem equal, floccosely fibrillose, striate 
at the top, hollow, white or whitish. Spores black on white 
paper, broadly elliptic, apiculate, 7—8x10—12//. 
“Pileus 2.5—7 cm broad; stem 2.5—6 cm long, 4—10 mm 
thick. Ground in woods and open places. August. 
“This species is closely allied to Hypholoma velutinum 
(Pers.) from which it may be separated by its dry, not hy- 
grophanous, pileus, its whitish flesh and stem, the absence of 
cystidia and the larger spores.” 
The differences between the Hypholoma velutinum group 
and the closely related Hypholoma Iacrimabundum group 
have been discussed in Vol. XVII, pp. 1152-1155, where two 
forms of the latter and one of the former were illustrated. 
The essential difference between the two groups is in the 
spores. The following synopsis shows the forms illustrated 
in each group: 
* 
Spores smooth, 3—5x7—9g. Plants whitish to tawny. 
Plants smaller, lighter colored, squamose. 
H. Iacrimabundum, vol. XVII, pi. LXXVII C. 
Plants larger, darker colored, squarrose. 
H. echiniceps, vol. XVII, pi. LXXVII B-LXXVIII. 
