140 DIPLOPERISTOMI. [Fontinalis. 



Deutschl. Moose, t. 34. / 3. Schwaegr. Suppl. v. 1. P. II. p. 

 146. 



Cryphsea heteromalla. Brid. Meth. p. 139. 

 Fontinalis secunda. Dicks. 



Sphagnum arboreum. Linn. Sp. PL p. 1570. Dill. Muse. t. 32. 

 /6.' 



HAB. Trunks of trees; rare in Scotland. Trees near 



Forfar and near Callander. 



Stems slightly branched, diffuse. Leaves imbricated on every 

 side, concave, with the nerve disappearing below the point, 

 their margins recurved, quite entire. Perichsetial leaves as long 

 as the capsule, broadly ovate, and suddenly acuminated, almost 

 cuspidate, having a nerve reaching to the point. Capsule sessile. 

 Lid conico-acuminate. Calyptra mitriform, brown, somewhat 

 fringed at the margin. 



XXIX. FONTINALIS. 



GEN. CHAR. Fruitstalks lateral ; Peristome double ; the ex- 

 terior consisting of 16 teeth ; the inner of 16 cilise, 

 connected by transverse bars, and forming a reticulated 

 cone ; Calyptra mitriform. (TAB. IIL) 



We know of no genus which at all resembles this in the 

 curious structure of its inner peristome. We speak, however, 

 only of the two first of the following species ; for of the third we 

 can say nothing, having never seen its peristome. Its habit and 

 strongly-nerved leaves differ essentially from the two others. 



1 . F. antipyrelica ; leaves nerveless for the most part complicate - 

 carinate. (TAB. XXII.) 



Fontinalis antipyretica. Linn. Sp. PL p. 1571. Turn. Muse. Nib. 

 p. 199. Smith, FL Brit. p. 1336. Engi Bot. t. 859. Moug. et 

 NestL n. 238. Hook. FL Scot. P. II. p. 138. Funck, Deutschl. Moose, 

 t. 54. A. f. 1. Hobson, Brit. Mosses, v. 1. n. 59. Drummond, Muse. 

 Scot. v. 2. n. 59. Arn. Disp. Muse. p. 70. Schwaegr. Suppl. v. 1. 

 P. II, p. 307 DHL Muse. t. 33. f. 1. 



