Hypnum.] MUSCI-PLEUROCAKPI-PERISTOMI. 75 



Taylor. On moist inclined faces of rocks, usually near rills, on the side of 

 Turk mountain and Cromagloun near Killarnev, rarely upon trees ; Mr. 

 Wilson. Fr. Oct. Dec. — The plant grows in large tufts : stems slightly 

 branched, scarcely half an inch high ; branches erect ; leaves rather loosely 

 imbricated, almost erect, of a delicate nearly membranous texture, faintly 

 reticulated, the margins thickened and somewhat waved, entire, those of 

 the periehectium are few, small, ovate, nerveless. Seta scarcely rising 

 above the stems, scabrous above. Capsule inclined, ovate, with an in- 

 distinct apophysis. Calyplra mitriform, nearly white, delicate, faintly 

 reticulated ; the base cut into fine capillary segments. Lid conico- 

 rostrate, nearly as long as the capsule. Peristome large in proportion 

 to the size of the capsule, pale yellow : Outer one of 16 subulate teeth 

 expanding in water, inner of 16 slender cilia alternating with the outer 

 teeth, united by a membrane which scarcely rises beyond the mouth of 

 the capsule. (Wils.) 



39. Hypnum. Linn. Feather-Moss. 



Seta lateral. Peristome double : the outer of 16 teeth ; the 

 inner of a membrane cut into 16 equal segments, with filiform 

 processes frequently placed between them. Calyptra dimidiate. 

 (Muse. Brit. t. 3.) — Named from wvog, sleep, according to Bridel, 

 given to some kind of tree-moss or Lichen ; and by Ray ap- 

 plied to this Genus and its allies on account of some fancied 

 soporiferous property. — Leshca, of authors, is here united to 

 Hypnum : for the characters by which it is separated (the ab- 

 sence of the intermediate cilia or filiform processes) is too minute 

 to be generally available to the student. 



I. Stems (taken in conjunction with the leaves) plane. 

 1. Capsules erect 



1. H. trichoma noides, Linn, (blunt fern-like Feather-n 

 leaves broadly scymitar-shaped serrated at the point, nerve 

 reaching to the middle of the Leaf, capsule ovate erect, lid ros- 

 trate. Schreb. Fl. Lips. — Turn, Muse. Rib. p. 14.'). FL BriLp. 

 L287. //. Bot. t. ! 193. Bobs. Br. Mosses, r . 1. n. 64. Drum. 

 Muse. Scot. v. 1. n. 7D. Muse. Brii.ed. 2. p. 152. t. 24. — Leskea 

 trichom. ffedw. — Schwaegr. SuppL v. 1. P. 11. p. lo ; 5. — Dill. 

 Muse. t. 34./ 8. 



Not [infrequent on the trunks of trees. Fr, March. — Easily dis- 

 tinguished by its peculiar Bcymitar-shaped feat* 



l'. II. complandtum, Linn. ( flat Feather-Moss)} leaves oblong 

 apiculate entire nerveless, capsule ovate erect, lid rostrate* Lena. 

 8p, /'/./>. 1588. Turn. Muse. Hib. p. ill. FL Brit p. 1286. 

 /•;. Bot, t. 1492. Bobs. Hi. Mosses, v. I. n. 65. Drum. Muse. 

 Scotv. I. //. 72. Muse. Brit. so*. 2. p. !•>-• '■ %4*—LB*km 

 eompL Hedw. — Schwaegr. SuppL v. I. P. //. />■ 163. — DHL 

 Huse, t. 34. f. 7. 



Trunks of trees, verj common. Fr. Spring.—- This and the preced- 

 ing sj ecio«; arc allied in habit to Xr.f.'ta. especially to y. /"<»"/". 



