— 1 12 — 
ber of the group was recognized to be typically folioliferous. Specimens have 
been examined from Massachusetts collected by Miss Carr and Mr. Walter 
Gerritson. It has also been collected on Mt. Washington. 
C. verticillata evoluta f. apoticta (Ach. ) Wainio. A very curious 
form collected by Miss C. M. Carr, on sterile soil, Sudbury, Mass., is referred 
here. 
C. verticillata m. cervicornis (Ach.) Flk. Examination of numerous 
European examples emphasize the fact that the caespitose macrophylline 
primary thallus is the only really distinctive character. Typically inconstant 
in all other of its exprsssions the Europeans have applied a host of definative 
phrases to the varying conditions. Such American material as we have seen 
is referable to Floerk’s f. phyllophora (De Clad. p. 28) and Nylander’s f. 
polycarpoides (Li. Par p. 30.) the former received from Prof. Macoun col- 
lected at Mt. Murray, Quebec, and the latter from Miss Carr, collected in 
Sudbury. Of Miss Carr's plant we can only provisionally place it. Euro- 
pean specimens of f. polycarpoides are provided with a conspicuous primary 
thallus, in the Sudbury plant the thallus is deficient. Nylander unites the 
form with his v. cervicornis , but our specimen seems more an expression of 
v. evoluta. It is true that in the obliteration of the scyphi by dissection into 
fastigiate branchlets there is a strong point of resemblance to cervicornis but 
ours occurred unmixed with V. evoluta, and may be but a modification. 
C. verticillata m. abbreviata Wainio, constituted on material collected 
by Henry Willey in New Bedford, Mass., seems on the whole to be but an 
expression of m. cervicornis. Reduced in both thallus and podetia the state 
is probably the result of aridity of habitat. Examination of a French speci- 
men detetmined by Wainio discloses many points of similarity with m. cer- 
vicornis ■, the most conspicuous of which was the congested horizontal thallus. 
We have recently found the plant in our own region. 
Rockland, Maine. 
A NOTE ON LOCAL MOSS DISTRIBUTION. 
John M. Holzinger. 
The mode of occurrence of several mosses characteristic of the vicinity 
of Winona, Minn., on the bluffs facing the upper Mississippi valley, appears 
to follow a very definite law of distribution on a small scale. This fact did 
not become clear to the writer till this summer, when an opportunity was af- 
forded of a somewhat close exploration for mosses of the bluffs around 
Dakota, a village on the banks of the “ Great Father of Waters,” some twenty 
miles below Winona. Briefly stated, the characteristic mosses near river 
level (820 feet above the Gulf of Mexico) are Barbula obtusifolius , Bryum 
pendulum and Leptobryum pryiforme, all occurrring in great abundance on 
perpendicular sand ledges kept moist more or less throughout the year, and 
lying in the shade, The Chicago, Milwaukee and St. Paul Railroad here 
skirts the west bank of the river from La Crosse to St. Paul. Its bed runs 
just above high water mark. In many places it is hewn out of the solid sand 
