78 



46. BUXBAUMIA, Albert ton Haller. 

 Named in honour of J C. Buxbaum, a German "botanist. 

 Key, No. 55. Growing on soil or decayed wood. 



1. B. Tasmanica, Mitt. Similar to B. indusiata, leaves 

 very small, ciliate. Fruitstalk shining, sub-scabrous. 

 Capsule sub-erect, ovate ; upper surface plain, immar- 

 cinate ; lower surface convex. Lid conical. Peristome 

 apparently composed of smooth bladdery cells, 

 scarcely free from the internal membrane. Cheshunt. 



47. POLYTEICHTJM, Linn. 



Many hairs, alluding to the hairy calyptra. Dark green or 

 brown plants, growing on the earth or at the roots of trees. 

 Key, No. 49. 



Atbichum, calyptra narrow, cucculate, elongate, naked, apex very spinu- 

 lose. Capsule cylindrical. Lid with slender beak. Leaves lanceolate- 

 ligulate, nerve narrow, sparingly lamillate, sub-flaccid. 



1. P. angustatum, Hook. Stem slender; leaves elongate, 



lanceolate, crisped when dry, spinulose-serrate above. 

 Capsule cylindrical, sub-erect ; lid with slender beak, 

 calyptra naked. Atrichum angustatum, Bryol. Bur., A. 

 ligulatum, Mitt. Var. polysetum, fruitstalks aggre- 

 gated. Mt. Wellington, Southport Narrows. 



Psilohlum, peristome teeth 16-32, very short. Capsule ovate, ventri- 

 cose. Calyptra hairy at the tip, naked below. 

 Leaves entire. 



2. P. Australe, Hook. /. and Wits. Stems short ; leaves 



crowded, erect and incurved when dry, ovate-subulate, 

 densely lamellate, quite entire. Fruitstalk short; 

 capsule inclined, ovate ventricose, small mouth ; lid 

 beaked. Calyptra short, scabrid at the tip. Around 

 Hobart, on stones and on the earth. 

 Leaves denticulate. 



3. P. crispulum, Hook. /. and Wils. Leaves rather 



flaccid and spreading, crisped when dry, oblong- 

 lanceolate, sub-acute, toothed, incurved, lanceolate. 

 Fruitstalk elongate ; capsule inclined, ovoid, small 

 mouth. Lid rostrate. Teeth 32, minute, narrow. 

 Western Mountains. 



Cyphoma. Capsule flat above, gibbous below. Calyptra sub-nude. Teeth. 

 32-64. Leaves acutely serrate, rigid, base sheathing. 



4. P. Magellanicum, Hedwg. Stems branched. Leaves 

 spreading and recurved, rigid, base _ ovate, sheathing, 

 thence subulate, serrate. Capsule inclined or horizontal, 

 oblong, semiterete. Lid conico-rostrate, calyptra 

 slightly hairy. Polytrichadelplius Magellanicum, Mitt. 

 Catharinea (Polytriehadelplius) innovans, C. Muell. Mt. 

 Wellington. 



