Harper—Additional Species of Pholiota. 409 
Hypholoma dispersum is reported in Farlow’s Index. It 
is a small non-caespitose species apparently belonging to this 
group. 
STRUCTURE OF THE PLANTS IN THE GROUP 
a. The universal veil is composed of long fibers of hyphae. 
It is seen on the pileus in the squamose forms and in the 
partial veil which is stretched into cobwebby fibrils by the 
expansion of the pileus like a cortina and does not form a 
membrane. Where exposed on the pileus and stem the uni¬ 
versal veil becomes colored but remains white in the partial 
veil. In most cases the universal veil disappears early and 
the pileus and stem are covered with a smooth colored cor¬ 
tex. 
b. The fibers of the partial veil break near the stem, pi. 
XlXa, and vol. XVII, pi. LXXII B, leaving no visible trace 
of an annulus on the stem. The remains of the veil on the 
margin of the pileus are also loosely fibrous so that they dis¬ 
appear early. The resemblance of the veil to a cortina 
is seen in pi. XIX B. The veil does not strip off from the stem 
in a membrane as in the Hypholoma appendiculatum group, 
pi. XXIII E, but the hyphal threads pull away separately 
up and down the stem as in species of Cortinarius. The 
ridges which are usually to be seen on the upper surface of 
membranous annuli are not apparent. 
c. The pilei are shaped like those in the Pholiota praecox- 
dura group. They are convex with thick solid flesh and in¬ 
curved margins. The lamellae are nearly horizontal and 
secondary lamellae are numerous. The epinasty is in the 
pilear area so that as the plant elongates the gills become 
more and more adnate with long decurrent teeth. When 
young they are rounded at the stem and nearly free. Com¬ 
pare the young gills in pi. XIX B with those in the expanded 
pilei in Vol. XVII, pi. LXXII. Intermediate degrees of elon¬ 
gation of the bases of the gills can be seen in vol. XVII, pi. 
LXXIV. 
THE HYPHOLOMA VELUTINUM GROUP 
The group is separated from the closely related Hypholo¬ 
ma lacrimabundum group by the opaque tuberculate and 
