222 PROCEEDINGS OF THE ACADEMY OF 



ore connivente lobulato-dentato nonnullo auguste scarioso ; involucri foliis 

 tribus erectis baud coalitis ; pedicello longitudiae semilineari ; capsula ovali. 

 — Hej). Bor. Amer. Exsic. ined., No. 50. 



J. divaricata, Sulliv, Muse. AUeghau. N. 239. 



On very rottea wood uear Columbus, Obio, Sullivant. About Closter, New 

 Jersej', aud Jordansville, New York. Also near Belleville, Canada West, 

 Macoun. 



Remarkable for its extremely minute size. Differs from J. divaricata, Engl. 

 Bot., in the much smaller size of the whole plant, particularly the perianth, in 

 the larger, sublanceolate amphigastria, in the discrete involucral leaves, and in 

 the roundish, less quadrate and less angular cells of the leaves. 



JUNGERMANNIA j\rAC0nNIl, Aust. 



J. caule compacte lateque caespitoso tenui valde innovante ramuloso, 

 ramulo fructifero brevissimo veutrali ; foliis caule latioribus subimbricatis 

 erecto-subverticalibus subcomplicato-concavis e basi angustiori subcuneato- 

 ([uadratis ultra medium bifidis, siuu plerumque lato obtuso, laciniis triangulari- 

 lanceolatis vel subulatis rectiusculis sub pressura divaricatis, areolis parvius- 

 culis angularibus ; perianthio minuto albido subtrigono ovali obovato gibbo- 

 sitate subintiato, apice contracto subi)licato, ore denticulato ciliatove: involucri 

 foliis subovatis subinaequaliter bi-trifidis serratis longe ciliatisve. — Hep. Bor. 

 Amer. Exsic. ined., No. 55. 



On decayed logs in woods, Canada West, John Macoun. 



Differs from J. divaricata in the more matted stems, in the rather wider, more 

 complicate leaves with an obtuse sinus ; aud chiefly in the much shorter, white, 

 and differently shaped perianth, wliich is situated on a short ventral branch. 

 The habitat (old logs) is also different. Color very dark green, changing to 

 dark fuscous- or brownish-green in the herbarium. Perianth shaped much as 

 in J. Helleriana, Nees. 



Jdngkrmannia pleniceps, Aust. 



J. caule dense cffispitoso perbrevi e ventre valde radiculoso iunovanteque 

 ramoso ; foliis incrassatis orbiculatis valde concavis verticali-conniventibus 

 subsemiamplexicaulibus ad ^ bifidis, siuu acutinsculo obtusove, lobis ommino 

 acutis iucurvis valde conniventibus ; fructu in ramulo ventrali terminali, 

 perianthiis confertissimis magnis oblongo-cylindricis obtuse trigouis, ore 

 plicato denticulato hinc laciniato; involucri foliis rectis oblongis bi palmato- 

 quadrifidis nonnuUis stipuloideis ; rete folioruni e cellulis amplissimis subro- 

 tuudis hyalinis instracto. 



Among Sphagna, White Mountains of New Hampshire, Oakes. 



Remarkable for the very concave, upwardly conniveut and thick leaves, 

 whicli are composed of very large inflated cellules ; for the very short stems 

 with numerous ventral innovations, and for the very abundant fruit, — the 

 perianths completely covering the ccespites. Color pale or albescent. (Some of 

 the involucral leaves (the ventral ones) are amphigastria-like. Resembles /. 

 cojininens, Dicks., but is somewhat larger, with shorter stems, more vertical and 

 concave and thicker leaves, which are not decwrent, and a larger more cylindri- 

 cal perianth, which is not ciliate at the mouth. Perianth much as in J. 

 hicuspid'ila, but the shape of the leaves is quite different from the specimens of 

 that species collected by Oakes, in precisely similar situations ; the stems are 

 also shorter and the involucral leaves not spreading at the apex. 



LoPHOCOLEA Hallii, Aust. 



L. caule repente parcissime radiculoso; foliis subverticalibus oblongis in- 

 tegris vel subrepandis crenulatis fere ad medium bilobis, sinu obtuso, Inciniis 

 subreclis plerumque obtusis, rete e cellulis subparvis rotundis convexis hyalinis, 

 intersticiis augustissimis instructo ; amphigastriis inf'erioribns parvis profunde 

 bipartitis, sinu valde obtuso, laciniis subiequalibus terretiusculis patulis in- 



[Dec 



