19011 Collins,—— Some Notes on Mosses - 199 
the yellowish gills. "Though apparently smooth when moist, the caps 
were pruinose, or fibrous-pruinose when dry. The gills, though 
appearing free, were rounded behind up to a very slight attachment. 
The brittle stem, long, hollow, and rather thin-walled, was yellow- 
scurfy below and mealy pruinose above, with obscure striations at 
the tip. The base, in some specimens, was slightly swollen. In 
the dried plant the gills became cinnamon color. 
The spores,12 4 to 15 u by 71 to 9 p, were broadly elliptical, smooth, 
very regularly rounded at one end, a little flattened or blunted at the 
other. In side view they showed a depression on one side, and thus 
appeared concavo-convex. 
In the buttons the pileus was somewhat globular, with straight 
margins, appressed at first. Later the pileus became hemispherical 
rather than campanulate, and was finally expanded and upturned, 
exposing the mature brown gills. The expanded plants were 1 to 13 
inch broad; the stems were 3 to 4 inches high, and slender, though 
proportionally thicker than in Galera or Panaeolus. 
A plant so delicate as this is soon affected by hot sun. It is seen 
at its best on a cloudy day, or early in the morning, and is most 
beautiful when beaded with moisture, that clings in minute globules 
to the tips of the fibrils on the stem. 
ALSTEAD SCHOOL OF NarURAL HisrORv, Alstead Centre, New 
Hampshire. 
SOME NOTES ON MOSSES, WITH EXTENSIONS 
OF RANGE. 
J. FRANKLIN COLLINS. 
HyvPNUM CORDIFOLIUM, Hedw. In specimens collected by Dr. R. H. 
True at North Haven, Maine, Sept. 2, 1900, the alar regions of the 
leaves of some stems show all gradations from the gradually enlarged 
cells of typical Æ. cardifolium to forms in which they are abruptly 
enlarged, making well defined auricles. The leaves of the specimens 
which exhibit the last mentioned character are often smaller than in 
the typical plant, otherwise the characters are apparently identical. 
The peculiarity of having the alar cells more or less abruptly inflated 
seems to be rather characteristic of certain stems in material which 
