20 



ML SCI HEPATIC I. 



Multifida. 

 Linn. 



Pahnatn 



Hedwig 



Bipmnata. 

 I i.z. 



Furcata 

 Linn. 



Pubescent 

 Sehrank. 



Nobis. 



§ 52. I. FRONDE REPENTE, BIPINN ATIFID A EXLRVI, LA* 

 CIMIS ANGU8TIS, APICE LATIORIBUS. V. V. Coll. Eu- 



rop. * Weber, p. 94. Schwg.'p. 31. 



Dr. Torrey sent specimens from Cedar Swamp. 



Very common here among leaves in springs, especially 

 the' variety sinlata Dickson, which sometimes grows 

 very huge and beautifully multifid. It is of a brittle sub- 

 stance, and fine blue green. 



§ 53. I. FRONDE BREVI, SUBADSCENDENTE, DIG1TATO 



palm ata, eneiivi. v. v. ColL Europ. Weber, ??. 95. 



Schwg. p. 30. MM. Cat. 24. 



Occurs on rotten wood in very moist places, or that is 

 often inundated. The irons at most three lines long ; but 

 a large patch is often together. Very dark green. 



§ 54. I. FRONDE PROCUMBENTE, BIPINNATA, ENERVI, 

 LACINIIS VERSUS APICEM ATTENUATES. T. V. * f 



Weber, p. 95. Schwg. p. 30. Swarz. p. 145. 

 A small, but neat species, perfectly agreeing with 

 Swartz. Among mosses on shelving shaded rocks. 



§ 55. I. FRONDE LINEAR!, DECUMBLNTE, RAMOSA, EX- 

 TREMITATIBUS FURCATIS, NERVOSA, MARGINE IN- 

 FERNE ET DORSO NERVI PUBESCENTE, LUTEO VIRIDI. 



v. v. Coll. Europ. Weber, p. 97. Schwg. p. 31. Mx. 



p. 280. Muhl. Cat. n. 22. JV. York Cat. n. 3. 



A very common moss on the sides of rocks and stones, 

 varying in color and pubescence of the margin, sometimes 

 almost smooth. 



§ 56. I. FRONDE LINEARI, RAMOSA. EXTREMITATIBUS FURCATIS, 

 NERVOSA. TOTA BUPERFICIE UTRINQUE PUBESCENTE. V. l\ 



Coll. Europ. * Weber, p. 99. Schwg. p. 31. 



This is found rarely with us, on mountains, and differs 

 by being altogether strongly pubescent : it is always of a 

 very yellow color. 



§ 57. I. FRONDE LINEARI ANGUSTISSIMA, RAMOSA, EXTREMI- 

 TAT1BUS NON FURCATIS SED SUBBIFID1S, LACINIIS ATTENUA- 

 TE, SUBENERVI. MARGINE FRONDIS LOBIS SPATHULATIS, 

 CLAVATIS ET DIFFORMIBUS, INTERDUM STOLONIFORMIBUS, 

 INTERMIXTIS CILIIS. ORNATO V V. * \ 



A new species, forming dense tufts along rocks and 

 earth, from which it is easily separated. Though allied 

 to the two former, it is manifestly distinct by the curious 

 margin of the very narrow and tender frons. 



