— 8— 



In mounting mosses on cards, I thin the ordinary lic|uid glue 

 with \ inegar, using about 25 per cent, of vinegar to 75 per cent, 

 glue. I then spread a thin layer of this on a dinner plate and 

 carefully place the specimen to be mounted on the plate, when it 

 becomes well smeared with glue on the under side. The specimen 

 is then placed on the card and put under light jiressure until dry. 

 It is a good plan to put clean white newspaper over the specimens 

 and change after a few hours to pre\'ent any accidental surplus 

 of glue from becoming attached to undesirable objects. For 

 cards, ordinary herbarium paper cut to a suitable size is \ery satis- 

 factorv. — A. J. G. 



NEW AMERICAN MOSSES. Continued 



From a revision of the North American Eurhvnchia, bv A. J. 

 (".rout. Bull. Torr. Hot. Club, 25: 221-256. 1898^ 



EuRHYNCHiUM STRIGOSUM SC.XBRISETUM Grout. Seta plainly 

 scabrous with papillae; otherwise like var. prircox. On shaded 

 ground. Type from the Palisades, N. J.; Sargentsville, N. J.; 

 Rensselaer Co., N. Y.; \'ineyard Haven, Mass. 



ErRHYNCHiUM PR.«LONGUM C.ALiFoRMCUM, var. nov. Gameto- 

 phyte with the habit of a TItuidiiim; stems i5-2(xm. long, closely' 

 and regularly pinnate, seldom stoloniferous, more robust through- 

 out than E. pra'longum; leaves of the maximum size. Type from 

 California, Bolander, No. 46. 1876. 



Elrhvnchium Brittoni.'E sp. nov. This species is very closely 

 related to E. prxlongum Californicum and greatly resembles it in 

 appearance, but is easily distinguished by its nearly smooth seta 

 and nearly entire stem leaves. Type from California, Bolander. 

 Specimens of this species of Bolander's California collections are 

 in the National Museum from "Little Ri\'er (Mendocino Co.?) 

 at the foot of pine tree, No. 332." Also in the herbarium of Mr. 

 J. M. Holzinger as No. 530. 



From Rhodora, 1: 78-80. pi. 5. 1899. 



PoTTiA Raxdii Geo. G. Kennedy. Autoicous: Male flower 

 gemmiform. Lea\'es octofaiius, entire, loosely disposed on lower 

 part of stem and forming a rosette abo\'e, 3-5111111. long by imm. 

 wide, oblong, apiculate, margin re\olute to above the middle, 

 bordered. Costa stout, excurrent. Cells at base long rectangular; 

 abo\e rounded, hexagonal or rhomboidal; capsule gymnosto- 

 mous, erect or sub-erect, oblong-oval, unequal; collum conspicu- 

 ous; operculum conical with a stout beak; annulus of three rows 



