— 15— 



Eiirhym hium or Caniptotheciuvt, but it is certainly more closely 

 related to B. asperri»ium and B. lamprochryseuin than to any 

 other species of Musci. The capsules of B. asperrimttm in Sul- 

 livant's figures are more slender than is the rule in a large series 

 of specimens examined. 



The following additional collections have been made: 

 J. B Leiberg (No. 573), Lake Pend d'Orielle, Idaho, in cal- 

 careous springs, Jan. 21, '91. This is more robust and less pin- 

 nate than the type and varies in the direction of />. lamprochry- 

 Si-uin. Macoun's Canadian Musci, 439, Hypnum {Camptothe- 

 ctum) tnegaptilnvi, on base of old sturap^ near the sea, Hastings, 

 Barnard Inlet, B C, is apparently this species. Bjth these spec- 

 imens have been previously referred by me to B. lainprochryseum, 

 this being the nearest species previously described. 



FURTHER NOTES ON MOUNTING MOSSES. 



IT is an acknowledged fact that the present method of mounting 

 mosses is productive of anything but good looking sheets after 

 the collection has been in existence for some time. Un- 

 less the sheet is full, there is always the temptation to add 

 just one more specimen. Then as study proceeds, some 

 of these specimens are almost sure to be referred to other 

 places, and must be detached from the sheet, leaving unsightly 

 spots. By the use of half or quarter sheets much of this difficulty 

 may be avoided, but for one who wishes to mount mosses on 

 sheets the same size of those his flowering plants are mounted 

 upon, some sort of an elastic system must be adopted which will 

 allow him to fill the whole sheet an once, and yet permit the col- 

 lection to grow. The method here illustrated seems to meet all 

 requirements. It consists of the ordinary mounting sheet of 

 standard size, in which sixteen short slits are cut, and into which 

 the corners of four quarter sheets may be inserted. The speci- 

 mens are then mounted on the small sheets, and afterwards 

 fastened to the ordinary sheet by placing the corners in the slits. 

 This method has the following advantages: Specimens wanted 

 for study may be detached instantly. Specimens may be changed 

 about on the sheet without damaging the sheet or specimens. 

 Different species of the same genus may be mounted on the same 

 .sheet temporarily, and later replaced by other specimens, in which 

 case all the specimens of one species may be kept on the same 

 sheet, and lastly, the whole collection can be filed away in covers 

 uniform with those of flowering plants. While this is primarily an 

 elastic svstem the mounts may be made permanent by fastening 

 the small sheets to the large one with a drop of glue. — Willard 

 N. Clute, Binghamton, N. V. 



