HEPATIC.*:. (LIVERWORTS.) 701 



33. PTIL-IDIUITI, Nees. FRINGED SCALE-MOSS. (Tab. 22.) 



Fructification terminal on short branches. Involucral leaves 2-4, four-cleft. 

 Perianth terete, obovate ; the mouth connivent, plaited, denticulate. Calyptra 

 pear-shaped, coriaceous. Capsule ovate. Elaters with two spiral fibres. In- 

 florescence dio3cious. Antheridia covered by closely imbricated perigoniai 

 leaves. Stem-leaves complicate-2-lobed, each lobe divided. Amphigastria 4- 

 5-lobed. (Name a diminutive of TrriXov, a doumy feather ; from the cut-fringed 

 foliage.) 



1. P. cilia re, Nees. Stems crowded, somewhat pinnate; leaves (4-cleft) 

 and amphigastria both lacerately ciliate, the fringe long and setaceous. Rotten 

 logs, in woods. (Tab. 22.) (Eu.) 



34. SENDTNERA, Endl. (Tab. 22.) 



Fructification terminal. Involucral leaves numerous, incised, free or connate 

 at the base. Perianth tubular, deeply many-cleft. Calyptra chartaceous. Cap- 

 sule globular. Elaters free, with two spiral fibres. Antheridia upon proper 

 branches in the axils of ventricose perigoniai leaves. Stem-leaves 2 - 5-cleft or 

 entire. Amphigastria 2 - many-cleft. (Named for 0. Sendtner, a German bot- 

 anist.) 



1. 8. jiniiperiiia, Nees. Stems erect, nearly simple, slender, elongated ; 

 leaves and amphigastria almost alike, oblong, curved and one-sided, 2-cleft to 

 the middle, the lobes lanceolate. High mountains. Plant rigid, reddish- 

 brown. (Tab. 22.) (Eu.) 



35. TRICHOCOLEA, Nees. DOWNY SCALE-MOSS. (Tab. VIII.) 



Fructification situated in a fork. Involucral leaves numerous, coalescent into 

 an oblong and truncate coriaceous hairy tube, concrete with the calyptra. Peri- 

 anth none. Capsule oblong. Elaters with two spiral fibres, free. Antheridia 

 on the upper side of the stem in the axil of leaves. Leaves palmately divided ; 

 the divisions laciniate. Amphigastria present. (Name composed of $pi', hair, 

 arid /coXeoy, a sheath; from the hairy involucre.) 



1. T. Tomcntella, Nees. Stems forked, 2 - 3-pinnately branched; 

 divisions of the 4 - 5-divided leaves capillary-many-cleft ; amphigastria setu- 

 ceously many -cleft. Moist places, in large patches. Foliage pale green, soft- 

 hairy/ (Tab. 22.) (Eu.) 



36. MASTIGOBRYUm, Nees. GREAT SCALE-MOSS. 

 (Tab. 22.) 



Fructification terminal, on short proper branches, arising from the axils of the 

 amphigastria. Involucral leaves small, narrow, acutely incised at the apex. 

 Perianth elongated, 3-angular, the mouth 3-toothed. Calyptra membranaceous. 

 Capsule globose. Elaters with two spiral fibres. Antheridia on short branches 

 from the axils of the amphigastria, two in the axil of each perigoniai loaf. Stera- 

 59* 



