Bkown. — On Neto Zealand Musci. 479 



already treated of, but if I have done so my excuse will be 

 found in the before-mentioned facts, In some instances I find 

 that several different species would partly correspond with a 

 written description of one plant, but owing to the above 

 reasons I have been obliged to treat all as new species. 



I have divided this genus into two sections — Section I., 

 leaves slender; Section II., leaves not slender — and it will be 

 at once seen on reference to the Plates how particularly ap- 

 propriate this subdivision is. 



I may again mention that my figures are all drawn with 

 a power of 25 diameters ; and, as the differences between 

 each plant in almost every instance are microscopic, it is of the 

 utmost importance that this scale should be adhered to. 



Not described in this paper. t No figures or description. 



