=F. hy´brida= Fr.—_hybrida_, a hybrid. =Pileus= about 2 in. broad, at first tawny-cinnamon, then tawny-orange, fleshy, hemispherical with the margin involute, then expanded, obtuse, regular and well formed, even, _smooth, moist_. =Flesh= moderately compact, pallid. =Stem= 2–3 in. long, 4–5 lines thick, at first _stuffed_ with a soft pith, then hollow, _attenuated_ (almost conico-attenuated) _upward_, whitish with adpressed silky-hairy down (becoming tawny when the down is rubbed off) slightly striate, with white hairs at the base, and somewhat mealy at the apex. =Veil= _manifest in the form of an annular zone at the apex of the stem_, white or at length colored with the spores. =Gills= adnate, somewhat crowded, _light yellow then tawny, not spotted_. _Fries._ =Spores= elliptical, tawny-ochraceous, 7–8×4–5µ _Massee_; 6×4µ _W.P._ Mt. Gretna, Pa., August, September, 1898. On ground under pine trees. Gregarious. _W.H. Rorer._ Not elsewhere reported. This is a handsome plant, quite prolific in the large pine groves at Mt. Gretna, Pa. The caps are of good flavor. =F. mag´na= Pk.—_magnus_, large. =Pileus= fleshy, broadly convex, soft, dry, fibrillose and somewhat streaked, pale yellow or buff, the margin commonly becoming revolute with age. =Flesh= whitish or yellowish. =Gills= close, adnate or slightly decurrent, often crisped or wavy toward the stem, about three lines wide, ochraceous. =Stem= equal or thickened toward the base, fleshy-fibrous, solid, elastic, fibrillose, colored like the pileus, brighter yellow within. =Spores= subelliptical, ochraceous, 10×6µ. Cespitose. =Pileus= 4–6 in. broad. =Stem= 3–4 in. long, 8–12 lines thick. About the base of trees. Westchester county. October. This is a large and showy species. The stems are sometimes united at the base into a solid mass. The young gills are probably yellow, but I have seen only mature specimens. _Peck_, 50th Rep. N.Y. State Bot. New Jersey, Trenton, ground in clearing, in pairs and singly. November, _E.B. Sterling_; Mt. Gretna, Pa. Mixed thin woods. October to November. Near trees. Cespitose, _McIlvaine_. Individuals of all ages were found and eaten. The young gills are very light yellow, darkening to a deep, rich yellow. The caps are of good substance and flavor. When very young the stems are edible. [Illustration] =TUBA´RIA= W.G.S. _Tuba_, a trumpet. (Plate LXXVII.) [Illustration: TUBARIA FURFURACEA. Natural size. ] =Stem= _somewhat cartilaginous, fistulose_. =Pileus= somewhat membranaceous, often clothed with the universal floccose veil. =Gills= _somewhat decurrent_. =Spores= rust-color or (in Phæoti) brownish-rust color.