—25— 



gradually becoming shorter and rounded as they near the mouth ; the neck 

 is short and stomatose, giving the capsule a pyriform shape. The seta is 

 2-3mm, long, twisted, with spiral cells above, and arcuate below. The 

 plants seldom measure more than 3mm. in height, the leaves from i-i.5mm., 

 spreading or recurved. The antheridial buds have 3-4 leaves, and several are 

 found around the base of the fruiting plant; only 2-3 antheridia are formed. 

 The spores are smooth and measure,. 08-oiomm. The stems are shorter and 

 less leafy than those of S. rectirvata, and differ from No. 171, Rab. Bryoth. 

 Eu. in the leaves, as described. Kindberg has credited this species to 

 Europe, Arnell and Blytt, and added Waghorne, presumably from New- 

 foundland. 



P. S. — The last part of Limpricht's Laubmoose (Pt. 37: 680, 1902) just 

 received, refers S. campy lopoda Kindb. to ^\ recurvata var. puviila Lindb., 

 comparisons having been made from original specimens. 



*NOTE. — The following- is the description as given in Macoun's Catalogue, Part 6: 

 p. 41 (149.) S. campylopoda Kindb. (n. sp.) Canadian Musci, No. 6U in part. 



Agrees with Seligeria recurvata in shape of capsule and the arcuate pedicel, but differs 

 considerably in the leaves being broader, very much shorter, sublinear, obtuse, rarely 

 short-acuminate and subacute, and the costa not excurrent. the perichaetial leaves ovate- 

 oblong, thin-costate, the peristome darker red. The male flower is fixed on the side of 

 the female. 



On damp and shaded limestone rocks at Owen Sound, Ont., Sept. 16th, 1890. 



SECTIONING STEMS AND LEAVES OF MOSSES. 



A handy method of sectioning stems and leaves of mosses is a desider- 

 atum with most working bryologists. The one about to be described will be 

 found, with patience and practice, to answer the purpose quite well in most 

 cases. 



Take a strip of heavy writing paper, say ^ of an inch wide and 

 inches long ; on the middle of this spread a drop of glycerine so as to cover a 

 space about ^ an inch long and % of an inch wide; put the part to be sec- 

 tioned on this space, the end to the right; place the paper on the stage of a 

 dissecting microscope and clamp it fast; with a pair of curved forceps in the 

 left hand to steady the part, and with a sharp scalpel in the right, commence 

 the cutting, watching the process through the lens; when a sufficient num- 

 ber of sections have been made scrape them with the dull blade of a pen- 

 knife to a dry part of the paper ; if carefully done the sections will adhere to 

 the blade, and may be easily transferred to a slide on which a drop of water 

 has been placed; pick out the coarser sections, cover with a class cover, and 

 the remainder are ready for the compound microscope. 



It is important not to have to much glycerine and to spread it evenly; 

 a knife blade answers the purpose. The scalpel should have a keen edge; a 

 knife will do if sharp enough. The parts to be sectioned should be soaked in 

 warm water for two hours at least and longer if possible. G. N. Best. 



A Correction— In a recent letter to the Editors, Prof. Charles H. Peck 

 calls attention to the fact that the perichaetial leaves of Leii-codon brachypics, 

 while reaching the capsule in nearly every case, do not "overtop" it in a 

 large proportion of cases. 



