ON A NEW SPECIES OF FISSiDENS. 89 



qiioJam bifidis multifloris (10—20), bracteis ovads acutis 

 rigidis cucullatis pedicello longioribus, floribus erectis mem- 

 branaceis, sepalis linearibus obtusis, petalis filiformibus, 

 labello sessili ovato acuto concavo utrinque 1-dentato : venis 

 baseos elevatis,— Asmall slender species with the habit of the 

 last — Found hy Dr von Martius in the Serra do Caraca, in the 

 Province of the Mines, in Brazil, (herb. Mart.). 



VIII — On a new species of Fissidens, found by T. G. Lea, 

 Esq., in North America. 



\_\Vith a Figure.'] 

 (Tab. II.) 

 Fissidens hyalinus (Wils. et Hook.) ; pumila erecta simplex, 

 foliis oblongis acutis reticulatis hyalinis enervibus, seta termi- 

 nali, capsula erecta ovata, operculo conico-acuminato. Hab. 

 Cincinnati, N. America. T. G. Lea, Esq. Rare on damp 

 earth in moist shady woods. 



Amongst an extensive and interesting collection of North 

 American Mosses, sent to us by T. G. Lea, Esq., from Cin- 

 cinnati, we find the very remarkable one of which we here 

 offer a figure. No other species that we are acquainted with 

 is destitute of nerve, or has the leaves so loosely cellular, or 

 so pellucid as the present. 



The plant grows in small tufts upon the ground. The 

 stems scarcely exceed a line in length, are simple, throwing 

 out a iew fibrous radicles from the base. The leaves are from 

 4 — 6, very large in proportion to the size of the plant, disti- 

 chous, unequal in size, oblong, acute, equitant in the upper 

 half of the base, pellucid, entire, loosely reticulated, with ob- 

 long cellules, quite entire, and quite destitute of nerve. Seta 

 lather thick, whitish, and semi-pellucid, terminal arising from 

 an oblong bulb, curved. Capsule erect, ovate. Operculum 

 shorter than the capsule, conico-acuminate. Calyptra mitri- 

 form. Teeth of the peristome 16, when moist strongly in- 

 curved and concealed in the mouth of the capsule, red, deeply 

 cut into two narrow subulate lacinise. 

 Vol. III.— No. 18. N 



