JUNGERMANNIACE.K. ( SCALE-MOSSES.) 715 



16. DIPLOPHYLLUM, 1 )uinort. (PI. 25.) 



Leaves rather narrow, coiiii(licatc-l)ilol>ed, tlic lubes suljequal or the upper 

 Binallcr, the lower succubous; undcrleaves none. Fruit tenniual. luvolu- 

 cral leaves few. Periauth cylindrical, scarcely or not at all compressed, pluri- 

 ])licate, denticulate. (Name from 5nr\6s, double, and <pv\\ov, leaf, ou account 

 of the folded 2-lobed leave;..) 



1. D. albicans, Dumort., var. taxifblium, Xees. Stems ascending, 

 almost rootless ; leaves closely folded, subdeuticnlate, with a rudimentary 

 ])ellucid line near the base or none, the lobes obtuse or acutish, the lower 

 oblonf^-scyniitar-shaped, the up])er smaller, subovate ; perianth ovate, plicate. 

 (Jungerniannia albicans and J. obtusifolia of Sulliv. ; not of L. and Hook.) — 

 Under rocks in mountain ravines and on the ground. (Eu.) — The typical 

 form occurs iu N. Scotia, distinguished by a broad pellucid median line in 

 both lobes. 



17. GEO CALYX, Nees. (PI. 23.) 

 Leaves succubous, bidentate ; underleaves 2-cleft, with linear divisions. 

 Fruit lateral, pendent. Involucre simple, fleshy, saccate, oblong, truncate, 

 attached to the stem by one side of the mouth. Calyptra membranous, 

 partly adnate to the involucre. Capsule oblong. Elaters free. Antheridia 

 in the axils of small leaves on spike-like lateral branches. (Name from yea, 

 tJie earth, and /caAy|, a cup, from the subterranean involucres.) 



1. G. graveolens, Nees. Leaves ovate-quadrate, 2-toothGd, light green ; 

 underleaves oval-lanceolate, cleft to the middle. — Un the ground, and rotten 

 logs; not rare. (Lu.) 



18. LOPHOCOLEA, Dumort. (PI. 23.) 



Leaves succu])ous, dorsally decurrent, ohliquely ovate-oblong, broadly trun- 

 cate or bidentate ; underleaves smaller, more or less quadrate, bifid or with 

 4 - 8 cajjillary lobes. Diu'cious or monoecious. Fruit terminal on the main 

 stem or primary branches. Invohu-ral leaves 2-4, large, often s]»inulose; 

 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 \6<pos, 

 a crest, and ko\c6s, a sheath, from the crested perianth.) 



* Uiuhrleaves mostly bifid {or 3-4-clefl in n. 1) ; divisions mostli/ entire. 



1. L. bident^ta, Dumort. Stems 1-2' long, procumbent, sparsely 

 brandling ; leaves pale green, ovate-triangular, acutely 2-tootlied, the teeth 

 oblupie witli a lunulate sinus; moncccious ; ])erlaiith oltlong-triangular, lacin- 

 iate ; antlieridia 2 - 3 in a cluster, axillary. — ( )n rocks in shady rills ; not com- 

 mon. (Ku.) 



2. L. Ausllni, Lindb. Creeping; leaves uniformly deeply lobed, the 

 lobes and usually tlie sinus acute; underleaves comparatixcly small, the lobes 

 subulate; cells snuill ; moncvcious; antheridia solitary in the upper axils. (L. 

 minor, Aunt. ; not Xtes.) — On roots of trees in woods {Austi)i). Imperfectly 

 known. 



3. L. Macounii, Aust. Stems very short, ])rostrate, ascending at the 

 apex, densely radiculose; leaves suberect, ovate-subquadrate, 2-lobed with ob- 



