BY L. RODWAY. 245 



1913. 



PoLYTRiCHUM. LeavGS very narrow, acute ; capsule four 

 angled or smooth ; calyptra densely hail'}^ Peristome 

 teeth 64. 



Dawsonia. Habit of Polytriclium, but seta short, and 

 peristome a brush of long hair-like teeth. 



Catharinea Ehrh. 



Stems erect from a creeping rhizome. Leaves ligulate 

 or oblong, softer than in most of the genera, bordered and 

 serrate at the margin, bearing few lamellae on the upper 

 surface. Capsule narrow oblong or cylindric, slightly 

 bent; lid with a long beak; calyptra narrow, spinulose 

 only at the apex ; peristome teeth 32, ligulate, rigid, at- 

 tached by the apex to a discoid expansion arising from the 

 columella. 



Distinguished from the rest of the family by the less 

 rigid leaves, 



Cathcirinea Muelleri Hpe. et CM. 

 Syn : Polytriclium nngustatum, Hook. 



Stems 2-3 cm. Leaves pale green, ligulate, spreading, 

 about 8 mm., plain but much crisped when dry; margin 

 limbate, strongly serrate ; apex sub-acute ; nerve slender 

 serrate beneath, bearing three or four lamellae above, van- 

 ishing at the apex. Seta slender, sometimes more than one 

 togetlier at the apex of a shoot ; capsule cylindric erect or 

 inclined, 5mm. Lid with a slender beak nearly as long 

 as the capsule. 



Very common on clay banks, chief!}' on hill sides. 



PsiLOPiLUM Brid. 



Small, erect. Leaves rigid, lanceolate ; nerve not very 

 broad ; upper surface with dense short lamellae. Capsule 

 oblong, mouth constricted ; lid rostrate ; calyptra smooth 

 or nearly so ; peristome 32 short teeth attached above to a 

 disc. 



Leaf mai'gin plain austrah. 



Leaf margin dentate crisindum. 



Psilopilum auBtrale (H.f. et W.) Jaeg. 

 Syn : Polytriclium austrah H.f. et W. 

 Erect 2-3 cm. Leaves erecto-patent, short, rigid, broadly 

 lanceolate from a broad sheathing hyaline base, subacute 

 3-4 mm. inclusive of base; margin plain; nerve not very 

 broad, upper surface densely lamellated. Seta 4 cm., cap- 

 sule inclined, oblong, smooth, mouth constricted 3-4 mm. ; 



