42 NEW SPECIES OF MUSCI. 



. 



shores of Australia, on the banks of Swan River, m 

 easily be supposed to present very novel forms of muscolo- 

 gical life. The following species are a few of the discoveries 

 of two well-prepared and practised observers of nature. 



Phascum, Hedw. 



] . P. cylindricum, caule diviso, ramis simplicibus, foliis oblon- 

 gis, obtusis, apiculatis, crassiusculis,margine subinvolutis ; 

 capsula exserta, erecta, cylindraceo-ovata, in rostellura 

 obtusum, subobliquum desinente. — Swan River, Mr. James 

 Drummond. 



Tufted, yellowish-green, with numerous shining capsules ; 

 stems about 1 line high. Leaves thick. Seta about the length 

 of the capsule. Calyptra dimidiate. This differs from P- 

 tetragonum, Hook., by the shorter stems, by the leaves more 

 twisted when dry, which, too, are more obtuse, and are dis- 

 tinctly apiculate, and by the taper (not angular) capsule. 



Gymnostomum, Hedw. 



1, G. linearifolium ; caule erecto ramosoj foliis confertis 

 subulato-linearibus, acuminatis, siccitate crispis, perichse- 

 tialibus laxiusculis ; capsula subexserta, inclinata, turbi- 

 nato-truncata, striata. — Under rocks and on hedge-banks; 

 on Pichincha, 9 Oct. 1827. Dr. William Jameson, (Dr. 

 Greville's Herbarium). 



Very nearly allied to Gymnostomum Lapponicum, Ehrhart, 

 but has the leaves far narrower, more elongated and gra- 

 dually acuminated (not apiculated), the perichjetium more 

 loose, the capsule less exserted and slightly inclined to one 

 side. 



2. G. brevicaule; caule subcaespitoso, brevi, simplici; foliis 

 late ovatis nervo excurrente apiculatis, margine recurvis, 

 integerrimis j capsula cylindracea, subajquali, operculo co- 

 nico-rostellato— Swan River, Mr. James Drummond. 

 Tufts, cursorily observed, appear like those of the European 



G. intermedium, Turn.; but the stems are shorter, the leaves 



