[Illustration: FIGURE 136.--Pluteus tomentosulus. Cap and stem entirely white, gills flesh color, stem furrowed and tomentose (natural size). Copyright.] =Pluteus tomentosulus= Pk.--This plant was described by Peck in the 32d Report, N. Y. State Mus., page 28, 1879. It grows on decaying wood in the woods during July and August. The plants are 5--12 cm. high, the cap 3--7 cm. broad, and the stem 4--8 mm. in thickness. The description given by Peck is as follows: "Pileus thin, convex or expanded, subumbonate, dry, minutely squamulose-tomentose, white, sometimes pinkish on the margin; lamellæ rather broad, rounded behind, free, crowded, white then flesh colored; stem equal, solid, striate, slightly pubescent or subtomentose, white; spores subglobose, 7 µ in diameter, generally containing a large single nucleus." From the plant collected at Ithaca the following notes were made. The =pileus= and stem are entirely white, the gills flesh color. The pileus is expanded, umbonate, thin except at the umbo, minutely floccose squamulose, no pinkish tinge noted; the flesh is white, but on the umbo changing to flesh color where wounded. The =gills= are free, with a clear white space between stem and rounded edges, crowded, narrow (about 3--4 mm. broad) edge finely fimbriate, probably formed by numerous bottle-shaped cystidia on the edge, and which extend up a little distance on the side of the gills, but are not distributed in numbers over the surface of the gills; =cystidia= thin walled, hyaline. The =spores= are flesh colored, subglobose, 5--7 µ. =Stem= cylindrical, even, twisted somewhat, white, striate and minutely squamulose like the pileus, but with coarser scales, especially toward the base, solid, flesh white. The species received its name from the tomentose, striate character of the stem. The plants (No. 3219, C. U. herbarium) illustrated in Fig. 136 were collected in Enfield Gorge, vicinity of Ithaca, July 28, 1899. VOLVARIA Fr. This genus takes its name from the volva, which means a wrapper, and which, as we know from our studies of _Amanita_, entirely envelops the plant at a young stage. The genus is characterized then by the rosy or reddish spores, the presence of a volva, and the annulus is wanting. The stem is easily separable from the pileus at its junction, in this respect being similar to _Amanita_, _Amanitopsis_, _Lepiota_ and others. The gills are usually, also, free from the stem. The species grow on rotting wood, on leaf mould and on richly manured ground, etc. They are of a very soft texture and usually soon decay.