JUNGERMANNIACEJE. (SCALE-MOSSES.) 719 



mg, decurrent dorsally, pale green ; involucral leaves separate ; perianth 



exserted, obovate-oMoug, the mouth 4-cleft ; ca])sule globose. — Mountains 

 of N. Eng. (Austin); rare. (Ku.) 



3. J. ptimila, With. Stems creeping, the tips somewhat ascending, 

 subsim])lc, rooting, pale; leaves ascending, ovate, ol)tuse, concave, entire; 

 involucral leaves like the cauline, erect ; perianth terminal, fusiform, jilicato 

 above and denticulate ; capsule oval. — On shaded rocks along rivulets, Clos- 

 teT,N.J. {Austm). (Eu.) 



§ 2. LOPHOZIA. L(<ivcs roundish or snhquadrctte, hidentnte, hijid, or some- 

 times 3 - fi<left ; undcrleaves none, or small and mostly 2-parted ; perianth 

 usually strongly plicate. 



» UnderleaiK'S present. 

 •*- Leaves hiJid or 2-lohed. 



4. J. Gillmkni, Aust. Stems short, densely cespitose, prostrate, strongly 

 radicnlose ; leaves vertical, round-ovate, sul)concave, !)itid, the lower leaves 

 with usually acute sinus and lobes, the upper much larger with rounded lobes 

 and obtuse sinus; underleaves entire or the Ijroader bifid; periantli without 

 involucral leaves, dorsal, sessile, obovate, subgibbous, ciliate, at length nmch 

 incised. — In a sandstone cave, Traine Island, L. Superior (Gi/lman). 



5. J. Wattiana, Aust. Stems rather thick, 2-4" long, fragile, subflex- 

 uose, strongly radiculose; leaves subvertical or spreading, subovate, concave, 

 emarginately 2-lobed,.the lobes acute or the upper obtuse ; underleaves some- 

 what obsolete, hair-like or subulate, incurved ; involucral leaves little larger, 

 less deeply lobed ; perianth terminal, small, ovate-gourd-shaped, whitish, ciliate. 

 — On the ground, northern shore of L. Superior (Macoun). 



■«- •♦- Leaves 3 - 5-clc/t. 



6. J. barb^ta, Schreb. (PI. 25.) Procumbent, sparingly branched; 

 leaves roundish-quadrate, with obtuse, acute, or mucronulate lobes and obtuse 

 undulate sinuses; underleaves broad, entire or 2-toothed, sometimes obsolete; 

 perianth ovate, plicate-angled toward the apex, denticulate. — On rocks in 

 mountain regions ; common. (Eu.) 



Var. attenu^ta, Martins. Ascending, with numerous offshoots; stem- 

 leaves semi-vertical, obliquely spreading, roundish, acutely 2-4-toothed, those 

 of the shoots closely imbricate, premorsely 2-4-denticulate ; involucral leaves 

 two, 3-toothod ; jjcrianth oblong. — In similar localities. (Eu.) 



7. J. setiformis, Ehrh. Erect or ascending, dicliotomous; leaves 

 toothed at base, 3 -4-cleft, the lobes ovate-oblong, acute, channelled ; under- 

 leaves ciliate-dentate at base, deeply bifid, the divisions lanceolate, acuminate ; 

 involucral leaves more toothed than the cauline; j)erianth terminal, oval, 

 plicate. — Alpine summits of N. II. (Oahs). (lui.) 



* * Underleavf s wanting. 

 ■*- Leaves 2-toothed ; involucral leaves 2-4-cle/l. 



8. J. alpdstris, Schleich. Stems creeping, crowded, bifid-branching, the 

 ends ascending ; leaves semi-vertical, ovate subtjuadrate, obliijuely toothed, the 

 teeth unequ«al, acute or mucronulate, distant ; involucral leaves wider, 2 -3-cleft ; 

 perianth twice as long, oblong, smooth, the mouth complicate ; cajisule oval. — 

 Alpine region of N. II. (Oakes). (Eu.) 



