discovered in South America hy Dr. Gillies. 3 



colour. Stems an inch and a half, or two inches long, much branched, 

 branches elongated. Leaves numerous, of a brownish green colour, 

 closely imbricated on all sides, erecto-patent, somewhat recurved 

 at the apices, oblong-ovate, carinate, entire and revolute at the 

 margin, furnished \vith a strong reddish nerve, which is prolonged 

 beyond the summit into a pellucid hair. Perichoitial haves few, 

 iiy'olute, and closely sheathing the fruit-stalk, ovate-oblong, atte- 

 nuated into a sharp point, the nerve scarcely reaching to the extre- 

 mity. Fruit-stalk about half an inch in length, often lateral in 

 consequence of innovations. Capsule cylindraceous, dark red, the 

 lid long and obliquely rostrate. Peristome long, composed of twist- 

 ed teeth free nearly to their very base. 



The species of Tortula hitherto known furnished with perichae- 

 tial leaves, are convolufa, rcvoluta, calycina, Jlexuosa, and pilifera. 

 Of these the last is the only one which bears any resemblance to 

 the plant under consideration. Tortula cariuata, however, is well 

 distinguished by its more ovate, recurved, and carinate cauline 

 leaves, and by the absence of the long narrow extremity in the pe- 

 richactial ones. The habit of the plant is also different ; the stem 

 is not divided into a number of small branches, in a bushy manner, 

 as in T. pilifera, but into several long branches mostly given off 

 towards the base, and generally even at the top. From the ap- 

 pearance of the specimens, I should conjecture that it was very si- 

 milar in its mode of growth to our own Tortula ruralis. 



IV. Bartramia fontajioides Gillies' MSS. 



B. caule fasciculate, ramis sequalibus erectis, ad apicem uncina- 

 tis, foliis secundis lanceolatis acutis denticulatis subfalcatis reti- 

 culatis glaucis, seta subradicali, capsula subglobosa subsulcata. 

 ^Pab. I. 



Hab. On moist banks and sides of ditches at Buenos Ayres. 



Plant tufted, delicate. Stems about three-fourths of an inch in 

 height ; branches very numerous, erect, given off in a fasciculated 

 manner near the bottom, very slender, of a pinkish-red colour, and 

 level at the tops, which are always uncinate. Leaves pale glau- 

 cous green, rather scattered, inserted on all sides in a lax manner, 

 but pointing more or less in one direction, somewhat falcate, lan- 

 ceolate, pellucid, reticulated, their upper half denticulate, the su- 

 perior ones gradually attenuated to a long point. Fruit-stalk about 

 an inch in length, rising a little above the tops of the branches, 

 slender, flexuose, yelloAvish red. Capsule subglobose, slightly sili- 

 cate, the orifice scarcely oblique, lid between convex and conical, 

 obtuse. 



From the immature state of the specimens of this moss, 1 have 

 not been able to obtain a peristome for examination. Neither am 

 I quite certain in regard to the sulcation of the capsule, which, 

 having collapsed while green, I have not succeeded in restoring. 

 The principal characters upon which the species will rest, are the 

 secund, more or less falcate, denticulate, glaucous leaves. The 



