The gills are somewhat distant when the pileus is expanded. There is not a separate collar as in Marasmius rotula; the gills are only joined in the form of a collar, and remain _cohering_ when they separate from the stem. _Fries._ Spores 8–10×4–6µ _B._ New York. Old stumps and rotten logs. June. _Peck_, 23d Rep. Mt. Gretna, Pa. Cespitose on decaying wood. July, September and October. _McIlvaine._ Very much like M. galericulata, but gills not connected by veins. The caps usually have a pinkish hue, often brownish. The stems are not as tender as the caps. The flavor is excellent. VI.—LACTI´PEDES. Stem and gills milky, etc. =M. hæma´topa= Pers. _Gr._—blood; _Gr._—a foot. =Pileus= about 1 in. broad, white flesh-color, fleshy-membranaceous, _slightly fleshy_ chiefly _at the disk_, conical then bell-shaped, _obtuse_, nay convex and spuriously umbonate, naked, even or slightly striate at the margin, which is _at the first elegantly toothed_. =Stem= 2–4 in. long, 1 line and more thick, remarkably tubed, rigid, normally everywhere _powdered with whitish, delicate, soft hairy down_, sometimes, however, denuded of it. =Gills= adnate, often with a small decurrent tooth, the alternate ones shorter, in front disappearing short of the slight margin of the pileus, whitish and wholly of the same color at the edge. Cespitose (very many of the stems conjoined and hairy at the base), firm, stature almost that of M. galericulata, wholly abounding with dark blood-colored juice. On stumps. Frequent. September. _Stevenson._ =Spores= spheroid-ellipsoid, 10×6–7µ _K._ I find a non-cespitose form of this species with red-margined gills. Its red juice, however, will serve to distinguish it and show its true relations. _Peck_, 31st Rep. Common in tufts like M. galericulata and of about the same size, but is readily distinguished by its red juice. This pretty plant can often be gathered in considerable quantity, and well repays the collector. VII.—GLUTINI´PEDES. Stems gelatinous, etc. None tested. VIII.—BASI´PEDES. Stem dilated at base, etc. None tested. IX.—INSITI´TIÆ. Stem inserted. None tested. [Illustration] HIA´TULA Fr. (Plate XXXIII.) [Illustration: HIATULA WYNNIÆ.] _Hio_, to gape. =Pileus= symmetrical, very thin, without a distinct pellicle, formed by the union of the backs of the gills, splitting when expanded. =Gills= almost or quite free, white. =Stem= central. =Spores= white. Allied to Lepiota in the thin pileus and free gills, but differing in the entire absence of a ring. Not at all deliquescent as in the genus Coprinus, near to which it was at one time placed by Fries. _Massee._ Reported from North Carolina. OMPHA´LIA Fr.