23 



often apiculate; pedicel usually rough. Stem rarely (in 

 one species) with paraphyllia. 



56. Camptothecium. Leaves plicate below, recurved 

 at the borders; alar cells small, generally impressed at 

 the basal angles. Capsule sometimes straight. Tufts often 

 shining. Mostly dioecious. 



c. Leaves acuminate and acute, arrounded or decur- 

 rent at base, not triangular, rarely falcate ; costa generally 

 long and simple. Lid of the capsule often rostrate ; pedicel 

 often rough. Stem rarely (in- few species) with paraphyllia. 



57. Eurhynchium. Leaves mamillose above (at least 

 the younger ones), rarely plicate, not or faintly (near the 

 base) recurved; costa simple. Lid of the capsule often 

 rostrate; pedicel often rough. Stem often pinnate. 



58. Brachythecium. Leaves not mamillose above, 

 often pHcate in the middle and recurved at the borders ; 

 costa simple. Lid of the capsule rarely (in few species) 

 rostrate ; pedicel often rough. Stem generally not regularly 

 pinnate. 



59. Campylium. Leaves not mamillose above, not 

 plicate, generally not recurved, often spreading; costa 

 mostly short and double (or indistinct). Lid of the capsule 

 not rostrate; pedicel smooth. Stem sometimes pinnate; 

 paraphyllia wanting. 



d. Leaves acuminate and acute, neither triangular 

 nor falcate; costa short and double or indistinct. Lid of 

 the capsule often rostrate; pedicel smooth. Stem usually 

 with numerous paraphyllia. 



60. Heterophyllon (new genus). Leaves mamillose 

 above. 



e. Leaves acuminate or apiculate, acute, not falcate, 

 with a cordate, broadly auricled base; costa simple, double 

 or indistinct. Lid of the capsule rostrate; pedicel smooth. 

 Stem without paraphyllia. 



61. Myurium. Branches julaceous. Plants robust. 

 Areolation of the leaves variable. 



/. Leaves acute and subulate-acuminate, generally 



