Harper—Additional Species of Pholiota. 415 
typical Hypholoma appendulatum which usually splits into 
segments and remains as patches on the margin of the 
pileus, see pi. XXIII E. 
Peck’s description of a similar form which was found at 
Linden, Virginia, and which he named Stropharia irregu¬ 
laris, is given in Torr. Bull. Jan., 1900, pp. 16-17. It agrees 
with our plants even to the cracked umbo and split margin of 
the pileus. According.to Earle, Peck was of the opinion later 
that the species was a form of Hypholoma incertum. The 
more persistent annulus and the long striae on the margin 
of the pileus agree still better with Stropharia longistriata 
Murr., Mycologia, Nov., 1912, which is described from 
specimens found on the Pacific coast. 
If we judge by the illustrations of the European Stropharia 
spintrigera in Cooke’s Illus. 542, and Fries’ Icon. 132, and the 
descriptions given of that species we must conclude that this 
is the corresponding American form to that species. Note 
especially the “distant fugacious annulus” the slight “incar¬ 
nate” tint of the pileus often seen in this form and in Hypho¬ 
loma appendiculatum, and the gills “joined behind” as in pi. 
XXIII A. The spores of Stropharia spintrigera also are re¬ 
ported as oblong-ellipsoid 4—6 x9—12 p. The species is said 
to be rare in Europe and to grow caespitose on trunks. 
STRUCTURE OF THE PLANTS IN THIS GROUP 
These large annulate forms offer good material in which 
to study the structure of the plants in the Hypholoma appen- 
diculatum-candolleanum group. 
a. The universal veil which covered the young plants re¬ 
mains as white floccose fragments on the pileus, pi. XXIII F, 
especially is it evident around the margin of the pileus and 
at the base of the stem in young plants, pi. XXII A. It soon 
disappears entirely except in the floccose varieties. 
b. The partial veil is made-of similar tissue and lies be¬ 
tween the gills and the stem in the young plants covering 
the mouths of the gill chambers. There is much superannular 
elongation of the stem preceding the expansion of the pileus 
which ruptures the veil" around the stem. The torn upper 
margin of the veil around the stem can be seen in pi. XXIII 
AB and G. The ridges on the upper surface are still to be seen 
on the annulus and on the remains of the veil at the apex of 
