— 8 — 
II. SERRATIFOLIA — 
D. Group Uncinatus: 
D. uncinatus (Hedw. ) 
E. Group Exannulatus : 
D. Rotae (DeNot). 
D. pseudorufescens (Warnst.j 
D. fiuitans (L.) 
D. exannulatus (Guemb.) 
The author’s interruption in this work, in order to elaborate his local 
Mossflora, has prevented his going into much greater detail and after spread- 
ing out his general plan he describes minutely and discusses the range of 
forms of only the eight species which appear to occur in his restricted area, 
vis.: D. pseudo fiuitans ; D. simplicissimus , with three new varieties; D. 
capilif olius, with five varieties, one new: D. lycopodioides ; D. latifolius ; D. 
brevifolius: D. uncinatus , with eight varieties, ,one of them new; D. sub- 
aduncus. 
In a foot note under D. uncinatus plumulosus the author considers Hyp- 
num symmetricum Ren. & Card., a form of this plumulose variety. No 
other American forms are referred to. While the author does not complete 
his task in the sense of his first intention, his treatment of this difficult sec- 
tion of Hypnum, based upon a comprehensive study of all the important 
Harpidium collections of Europe, commands both respectful attention and 
interest in the sound common sense judgment shown. And one of these 
days when from among our own bryologists one shall take up our American 
Harpidia for a general review, the way pointed out by this author will be of 
the greatest possible value. Winona, Minn. 
NEW OR UNRECORDED MOSSES OF NORTH AMERICA. 
By J. Cardot and I. Theriot. 
Translated and condensed from The Botanical Gazette, May, 1904. 
DESCRIPTIONS OP NEW SPECIES GIVEN IN FULL. 
Phascum hyalinotrichum Card. & Ther. 
Plants small, budlike, solitary or clustered, light green. Leaves imbri- 
cated, the lower smaller, the upper larger, median and upper ovate, 
0.8-1 mm. long by o.6 mm. wide, concave, entire or subentire, acuminate, 
margins plane or slightly reflexed below : costa narrow, 24// wide in the mid- 
dle of the leaf, attenuate below, excurrent into a hairlike flexuous hyaline 
point, y^-Yz the length of the leaf. Areolation lax, not papillose not very 
chlorophyllose, hyaline above, median cells irregular, quadrate, short- 
rectangular or subhexagonal, 18-30 // by 12-18 ju, somewhat incrassate, the 
lower larger and, thinner walled, the upper longer, more incrassate. Seta 
very short, 0.2 mm. long, geniculate; capsule immersed, globose, apiculate, 
0.7 mm. in diameter; calyptra cucullate, covering half the capsule. Ripe 
spores unknown. Plate XVI. 
