8. C. Macoùnii, Aust. Slender, much branched, dark green; leaves scarcely broader than the stem, wide-spreading, bifid with a broad or lunate sinus, the broad-subulate lobes mostly acute; cells subquadrate, somewhat pellucid; diœcious; involucral leaves appressed, 2–3-lobed, irregularly spinulose; perianth small, whitish, obovate or ovate-fusiform, obtusely 3-angled, setulose or ciliate.—Rotten logs, mountains of N. Eng., and northward (Austin, Macoun).
9. C. Sullivántii, Aust. Stems 3–6´´ long, fleshy, rootlets numerous; fertile branches suberect, clavate; leaves imbricate, often narrower than the stem, subquadrate-ovate, more or less serrate, the sinus and lobes subacute; diœcious; involucral leaves 3, erect, free; perianth broadly oval or subobovate, obtusely and sparingly angled, the apex slightly plicate, the mouth connivent, dentate, sometimes narrowly scarious; capsule oval.—On rotten wood, N. J., Ohio, and Ill.; rare. Our smallest species.
13. ODONTOSCHÍSMA, Dumort. ([Pl. 24.])
Leaves succubous, ovate or roundish, entire or retuse, rarely bidentate; underleaves minute, sometimes obscure or wanting. Diœcious or sometimes monœcious. Fruit terminal on a short branch from the lower side of the stem. Involucral leaves few, 3-ranked, bifid or rarely 3–4-cleft; perianth large, triangular-fusiform, ciliate or dentate. Calyptra membranous. Capsule cylindric-oblong. Antheridia in small whitish spikes on the under side of the stem. (Name from ὀδούς, a tooth, and σχίσμα, a cleft, alluding to the perianth.)
1. O. Sphágni, Dumort. ([Pl. 24.]) Leaves spreading or ascending, ovate, rounded or oblong, entire or retuse, subconcave; underleaves mostly wanting; perianth 3–6 times longer than the leaves, subulate-fusiform, laciniate or ciliate. (Sphagnœcetis communis, Nees.)—Among mosses, N. J. to Ill., and southward. (Eu.)
2. O. denudàta, Lindb. Stems densely rooting, somewhat leafless at base, flagellate, branching above; leaves spreading, broadly ovate, entire; underleaves broadly oval, entire or subdenticulate; perianth close-connivent above, at length bursting irregularly.—On rotten wood, Canada to Ohio, and south along the mountains. (Eu.)
14. KÁNTIA, S. F. Gray. ([Pl. 24.])
Leaves large, incubous, flat or convex, entire or retuse; underleaves small, roundish, the apex entire, retuse or bifid. Diœcious or monœcious. Involucre pendulous, subterranean, clavate or subcylindric, fleshy, hairy, attached to the stem by one side of its mouth. Calyptra membranous, partly adnate to the involucre. Capsule cylindric, the valves spirally twisted. Spores minute, roughish. Antheridia solitary in the reduced leaves of short lateral branches. (Name from J. Kant, a physician at The Hague.)
1. K. Trichómanis, S. F. Gray. ([Pl. 24.]) Creeping, without ventral runners; leaves pale green, imbricate, spreading, roundish-ovate, obtuse. (Calypogeia Trichomanis, Corda.)—On the ground and rotten logs; very common. (Eu.)—Var. rivulàris, Aust. Leaves dusky green or blackish, more scattered, flaccid; cells large. N. J. (Austin.)—Var. ténuis, Aust. Very slender, innovate-branching; leaves smaller, especially above, dimidiate-ovate or subfalcate, subdecurrent. Southern N. J. (Austin).
2. K. Sullivántii, Underw. Prostrate, with ventral runners; leaves flat, subcontiguous or imbricate, obliquely round-ovate, minutely 2-toothed with a lunulate sinus, abruptly decurrent; cells large, uniform; underleaves minute, the upper orbicular, bifid, the lower twice 2-lobed, the primary lobes round-quadrate, divaricate, the secondary ovate or subulate. (Calypogeia Sullivantii, Aust.)—Delaware Water Gap, N. J. (Austin).