THE VICTORIAN NATURALIST. 107 



To Baron von Mueller and Dr. C. Mueller I most gratefully 

 acknowledge my indebtedness for the names of a large number 

 of the species. 



Natural Order — Musci. Dillenius, Hedwig. 



Tribes — Bryaceae, Andraeaceae, Sphagna. 



Tribe I. — Bryaceae. 



Mosses properly so called, with an operculum separating or 

 persistent, mouth of the sporangium with or without an 

 annulus or ring, naked, or with a simple or double peristome. 

 Sub-Tribe — Polytricheae. Genus — Polytrichum. Dillenius. 

 Polytrichum commune. Linn6. (British " Hair-Moss."): 



Stem long, 3-6 inches, somewhat woody, of uniform thick- 

 ness. 



Leaves rigid, spreading, recurved, linear-lanceolate, serrate, 

 dark-green. 



Capsule quadrangular, with a conspicuous apophysis. 



Calyptra dimidiate, early deciduous. 



Peristome of 64 teeth, covered by a membranous, flat 

 epiphragm. 



Columella winged. 



Australian Alps — F. v. M., Stirling and Sullivan. Tasmania — 

 Gunn, Archer, Bastow. 



Polytrichum juniperinum. Hedwig. 



Stem stout, erect, short, woody. 



■Leaves inflexed, lanceolate, entire, decurrent, spreading, 

 dark-green. 



Perichaetial leaves erect, appressed, ending in a bristle. 



Seta robust, crimson, shining. 



Capsule quadrangular, prominently apophysate. 



Beak of operculum short, bent. 



Common on light, gravelly soils, especially about the roots of 

 trees. Ascends to the summits of our highest mountains. 



Polytrichum Sullivani. C. Mueller. 



Ste77i 4-5 inches, erect or ascendant. 



Leaves spreading, decurrent, serrate. 



Perichaetial leaves scarcely differing from the stem leaves. 



Calyptra slightly torn at the base. 



Apophysis inconspicuous. 



