Ht/pnum.] 



MUSCI-PLEUROCARPI-PERISTOMI. 93 



cauline leaves are the shortest and broadest, with the nerve excurrent, 

 which is characteristic of the species and together with the less falcate 

 foliage distinguishes it from H. commutatum, notwithstanding that 

 Schwaegrichen has lately united them. The large var., growing in 

 running water, is the H. fallax of E. Bot. and probably of Bridel. H. 

 falcatum of Schwaegr. Suppl. v. 3. t. 145, seems to be scarcely different 

 from this. 



61. H. atro-virens, Dicks, (dark green Feather- dloss); stems 

 variously branched procumbent, leaves all slightly secund 

 broadly ovate with an attenuated obtuse point, the nerve 

 running nearly to the summit, capsule ovate cernuous, lid 

 conical. Dicks. Cr. Fasc. 2. p. 10. Turn. Muse. Hib. p. 169. 

 Fl. Brit. p. 1307. E. Bot. t. 2422. Muse. Brit. ect. 2. p. 184. 



t. 26 H. filamentosum, Dicks. Cr. Fasc. 2. p. 11. Fl. Brit. 



p. 1308. Brid. Muse. p. 167. — H. attenuatum, Dicks.— E. Bot. 

 t. 2420. (not Leskea attenuata, Hedw.) — Leskea incurvata, 

 Hedw. Sp. Muse. t. 53. (not Ht/pnum incurvation, Mohr.) 



Trees and rocks, in mountainous countries. Fr. . — This, in many 



points, comes near H. filicinum ■, but differs in being procumbent, in its 

 loose and straggling ramification, more closely set, shorter, more con- 

 cave, broader and more obtuse leaves, with the margin more reflexed, and 

 quite entire, the nerve broader, of the same colour as the leaf, disappear- 

 ing below the point : besides all which, the texture of the foliage is 

 thicker and softer with distinct cellules : whereas in H. filicinum the 

 leaves are somewhat scariose.— I have remarked, under H. medium, its 

 affinity to that species. 



62. H. palustre, Linn, (marsh Feather-Moss); leaves secund 

 ovate somewhat acuminate concave entire the margins incurved 

 above, the nerve short often forked sometimes obsolete, capsule 

 oblongo-ovate cernuous, lid conical. Linn. Sp. Pi. p. 1593. 

 Turn. Muse. Hib. p. 191. Fl. Brit. p. 1329. E. Bot. t. Hrob. 

 Schwaegr. Suppl. v. 1. P. II. p. 292. Hobs. Br. Mosses, v. 1. 

 n. 88. Drum. Muse. Scot. v. 2. n. 80, Muse. Brit. ed. 2.p. 185. 

 t. 26.—//. luridum, Hedw. St. Cr. v. 4. /. .ss._//. fluviatile, 



Turn. Muse. Hib. p. 192. /;. Bot. t. L803. (not HedwX—H. 

 adnatum, Turn. Muse. Hib. p. 165. E. Bot. t. 2406. (not Hedw.) 

 —Dill. Muse. t.M.f. 27. 



Banks of rivers and standing water, and on wet rocks, abundant 

 Fr. Apr. — A very variable Bpecies. The sienu, or rather perhaps the 

 principal branches, arc upright, thickly crowded; the leaves flaccid, 

 varying from a deep lurid green, the most common tint, to a bright and 

 pale yellow, in some situations. The nerve \> sometimes obsolete, rarely 

 naif the length of the leaf, more frequently forked or double, 



(i:j. H. fluitanSi Linn. (Jbatsng Feather-Moss); leavet loosely 

 imbricated the upper ones especially ralcato-secund all lan- 

 ceolato-sabulate scarcely serrated at their points, the nerve 

 reaching nearly to the summit, capsule ovato-oblong curved oer 

 minus, [id corneal. Linn. FL Suec. ed. 2. p. 399. Hedw. St. 

 (',-. r. 4. t 36. Turn. Muse. Hu\p. 182. FL Brit. p. 1319. 

 /•'. Bot f. I 148. Sehwasgr, SuppL >•. I. /». //. p. 304, Hobs. 



