i — 61 — 
The moss described above as a new variety is not given the rank of new 
species since it was not in fruiting condition. In the published illustrations 
and descriptions of Octodiceras there were found certain details at variance with 
the characteristics of the actual specimens. A correcton of these details are 
here consideied a noteworthy addition and are illustrated in figures 4, 5, and 6 
of Plate XXVI. There is also considerable confusion in regards to the true rela- 
tionship of Octodiceras Julianum Brid., with the closely related species of Fissidens 
in which genus Octodiceras is often placed by certain bryologists. Octodiceras 
Julianum Brid. as it occurs in Oklahoma, is found submerged in running water 
throughout the year. In this respect it differs in habit from the species of Fissi- 
dens, which are found floating in quiet water, in moist places, or on surfaces 
that are dripping wet. Since Fissidens Hallianum Sull. and Lesq. is most fre- 
quently classed with Octodiceras under the synonym Conomitrium or as a sub- 
genus of Fissidens, the differences between these two species will be given in 
the table that follows. These points of variance apply equally as well to a 
comparison of Octodiceras with the genus Fissidens as a whole. 
Octodiceras Julianum Brid Fissidens Hallianum Sull. 
and Lesq. 
Habitat submerged aquatic floating or in moist places 
Seta of capsule. . .same length or much longer than the cap- 
shorter than capsule sule 
Calyptra mitriform cucullate 
Dehiscence of 
operculum equatorial above center of capsule 
Peristome 16 truncate teeth 16 subulate-lanceolate 
teeth 
Octodiceras (okto — -eight, dis keras — two horned, referring to the sixteen 
teeth) with a mitriform calyptra, a reduced peristome, and the equatorial dehis- 
cence of the operculum should rank as a genus distinct from Fissidens in which 
genus the species have a cucullate calyptra, an operculum that dehisces above 
the center of the capsule, and a peristome of more or less perfect teeth. 
University of Pittsburgh, 
Pittsburgh, Pennsylvania. 
Explanation of Plate XXVI 
a. Octodiceras Julianum Brid., entire plant, Xi. 
1. “ “ “ portion of leaf above vaginant lamina, X200. 
2. “ “ “ portion of leaf just below apex, X200. 
3. 
“ var. Ohioense Emig, portion 
X200. 
4 - 
“ capsule and spore, X50. 
5 . 
“ peristome, X200. 
6 . 
“ capsule and calyptra, X40. 
A COLLECTION OF MOSSES FROM NORTH CAROLINA 
A. LeRoy Andrews 
As supplementary to the list of hepatics published several years ago, 1 the 
following list of mosses may be of interest. In this case I have not taken the 
1 The Bryologist, 17 : s8ff 1914. 
