104 ADDITIONS AND CORRECTIONS. 
the sheathing portion composed of large oblong hyaline cellules, which else- 
oval-oblong 6 —7-articulated bodies. — San cos, Texas, Wright. — Sterile 
plant only known : it may be a Calymperes. 
Page 36. 
3°. Schistidium Agassizii, Sulliv. & Lesqx. (Muse. Bor.-Amer., 
No. 137.) Near S. confertum ; but distinguished by its blackish, shining, denser 
tufts ; narrower, longer, ia fiupulate leaves, with an obtuse dentate apex ; 
and an elongated exserted perichath.— Wet rocks, northern shore of Lake 
Superior, Agassiz. 
Page 54. 
1, Fontinalis gigantea (n. sp.).— Exceedingly like very large 
forms of F. antipyretica, Z.; ramification not so dense ; leaves not reflexed on 
the margin, otherwise pr same ; oe much smaller than in the small forms 
of that species ; teeth o persisto ter, less slender, with 18 - 20 rather 
distant articulations ; oh appendicalate, not -foriniig a tessellated cone, and, 
like the teeth, ‘emails columella emergent, persistent. — White Mountains of 
ew Hampshire, es, Tuckerman, James.— One of the largest mosses 
known. Stems 12/—15! long and 4’! — 5!’ wide, not leafless below ; leaves bright 
aan when old copper-colored, never blackish. Essentially different 
in its peristome from F. antipyretica, which has teeth with 27-30 articula- 
tions, and which, like the cilia (always connected by cross-bars), are strongly 
ranulated. 
The true F. squamosa and F. antipyretica have not yet been found within 
our limits. F. stars appears to represent the latter, and F. Dalecarlica the 
former species 
3° Fontinalis haga onrencriedon sp.). Dicecions ? stems 6!-10/ 
long, divided from near the base into siaibalike ramulose divisi 
large, oblong, pellucid, colored; perichsetia on various parts of the plant; 
perichzetial leaves, mes peristome, and calyptra as in F. biformis, Sulliv.— 
In rivulets, Massachusetts, Oakes, James: Rhode Island, eh Connecticut, 
D. C. Eaton. Stems vebtak, Foliage diner shining 
Our specimens are sterile, except those received from Mr. James since a 
foregoing pages were. printed.. F. Nove-Anglie is a rather large speci 
quite distinct from any before described, excepting F. biformis, the vernal aie 
of which it very closely vdaniabibe: and to which some sterile specimens col- 
lected near New Haven, Connecticut, by Mr. Eaton, were erroneously referred 
