CL. XXIV.] 38. CINC. FONTINALIOIDES. 



453 



less readily be confounded with Fontinalis antipyretlca^ which 

 grows almost in all running waters, but is distinguished by 

 its triple direction, by its want of nerves, and by the some- 

 what keel-shaped nature of its leaves, which are also much 

 larger, and more remote. The capsules are enveloped by 

 short round scales : the peristome consists in a trellis- 

 shaped net. The other aquatic mosses are still less similar. 

 Hypnum Jlmtans L. is distinguished by very small leaves, 

 separate from one another and alternating ; by long fruit- 

 stalks, and by a double peristome ; H. rusdjhlmm Neck, by 

 its ovate, serrated leaves, the nerves of which extend almost 

 to the point, by its long petiolated nodding capsules ; H. ri- 

 par'mm, by the fibres which every where proceed from the 

 axillae of the leaves ; H.JluviatUe Hedw. almost solely by its 

 petiolated capsules with a double peristome. 



The genus Cinclidotus, lirst estabished by Palisot-Beau- 

 vois, and admitted by Hooker, stands between Trichostomum 

 and Barhula. From the former, with vv4iich this moss used 

 to be classed, it is distinguished by having the teeth of the pe- 

 ristome united below, and twisted above. I^arhula is distin- 

 guished by this circumstance, namely, that the twisted cilia of 

 the peristome are tender, and must be considered merely as 

 prolongations of the internal membrane of the capsule. The 

 calyptre, too, is laterally divided. 



Synmymes and Figures. , 



Fontinalis minor lucens, J. Bauh. Hist- 770. Follis tri- 

 angularibus minus complicatis, Rai Syn, p. 79. Trian- 

 gularis minor carinata. Dill. Hist. Muse. p. 257. t. 33. f. 2. 



Muscus aquaticus frutescens pinnatus, Moris. 3. p. 626. s. 15. 

 t. 6. f 32. 



Muscus squamosus, foliis acutissimis, in aquis nascens, Tourn. 

 '' Inst. 554. 



Fontinalis minor. Linn. Sp. PI. 1571. Ed. Reich. 4. 452. 



Gunner, Fl Norv. n. 969. t. 3. f. % Eng. Bot. 557. 

 Hypnum, Hall. Stir p. Helv. n. 1795. 

 Hypnum nigricans, Vill. Delph. 3. 905. 

 Trichostomum fontinalioides, Hedxv. Stir p. Crypt. 3. t, 14, 



