1. G. gravèolens, Nees. Leaves ovate-quadrate, 2-toothed, light green; underleaves oval-lanceolate, cleft to the middle.—On the ground, and rotten logs; not rare. (Eu.)
18. LOPHOCÓLEA, Dumort. ([Pl. 23.])
Leaves succubous, dorsally decurrent, obliquely ovate-oblong, broadly truncate or bidentate; underleaves smaller, more or less quadrate, bifid or with 4–8 capillary lobes. Diœcious or monœcious. Fruit terminal on the main stem or primary branches. Involucral leaves 2–4, large, often spinulose; perianth triangular-prismatic, 3-lobed, ciliate or laciniate. Calyptra short, obovate, at length lacerate above. Capsule oblong-globose. Antheridia mostly solitary in or near the base of ordinary leaves. (Name from λόφος, a crest, and κολεός, a sheath, from the crested perianth.)
[*] Underleaves mostly bifid (or 3–4-cleft in n. 1); divisions mostly entire.
1. L. bidentàta, Dumort. Stems 1–2´ long, procumbent, sparsely branching; leaves pale green, ovate-triangular, acutely 2-toothed, the teeth oblique with a lunulate sinus; monœcious; perianth oblong-triangular, lacinate; antheridia 2–3 in a cluster, axillary.—On rocks in shady rills; not common. (Eu.)
2. L. Austìni, Lindb. Creeping; leaves uniformly deeply lobed, the lobes and usually the sinus acute; underleaves comparatively small, the lobes subulate; cells small; monœcious; antheridia solitary in the upper axils. (L. minor, Aust.; not Nees.)—On roots of trees in woods (Austin). Imperfectly known.
3. L. Macoùnii, Aust. Stems very short, prostrate, ascending at the apex, densely radiculose; leaves suberect, ovate-subquadrate, 2-lobed with obtuse lobes and sinus, or retuse or often entire; underleaves light pink, deeply bifid, the setaceous lobes spreading-incurved; monœcious; involucral leaves somewhat oblong, repandly 2–4-toothed at the apex; perianth subobovate, slightly angled.—On logs, Little Falls, N. Y. (Austin); Ont. (Macoun).
4. L. mìnor, Nees. Diffusely branching; leaves pale green, oval-subquadrate, expanded, convex, slightly rigid, equally and acutely bifid with a lunate sinus; underleaves {1/3} as large, deeply bifid, the lanceolate lobes acuminate; diœcious; involucral leaves like the cauline; perianth obtusely triangular-plicate at the apex. (L. crocata, Aust.; not Nees.)—On the ground and dry rocks in limestone regions (Austin). (Eu.)
[*][*] Divisions of the underleaves more or less dentate.
5. L. heterophýlla, Nees. ([Pl. 23.]) Stems short, creeping or ascending, much branched; leaves ovate-subquadrate, entire, retuse and bidentate on the same stem; underleaves large, 2–3-cleft; involucral leaves lobed and dentate; perianth terminal, the mouth crested.—On the ground and rotten logs in woods and swamps; very common. (Eu.)