Ht/pnum.] MUSCI-PLEUROCARPI-PERISTOMI. 79 



ture, its /eaves are more patent and in general the nerve is more evident 

 and longer, the colour is yellower at the extremity of the branches. 



12. H. alpestre, Swartz, (mountain water Feather-Moss); stems 

 creeping, branches erect, leaves loosely imbricated patent rotun- 

 dato-ovate obtuse concave entire rather rigid, nerve disappearing 

 beyond the middle or faintly 2-nerved at the base, capsule 

 broadly oblong cernuous, lid conical. Swartz, 3Iusc. Suec. p. 

 102. t. 6.f. 15. Hedw. Sp. Muse. t. 44. /: 1—4. Grev. Scot. 

 Cr. Fl. t. 282. 



Mountain rivulets, Ben Challum, Perthshire; Dr. Greville. Fr. 



. — I have followed Dr. Greville, who has so beautifully illustrated 



this and the preceding species, in keeping this Moss distinct from the 

 preceding ; though Dr. Taylor and myself had expressed a different 

 opinion in the Muse. Brit.; and indeed the distinguishing marks are 

 very slight, if they are constant. 



13. H. trifdrium, Web. (three-ranked Ftather-Moss); leaves 

 compactly and subtrifariously imbricated ovate obtuse entire 

 concave, the nerve disappearing below the middle, capsule 

 oblongO-ovate cernuous, lid conical. Web, et Mohr, FL Sine. 

 t. 2. f. 2. a, d. ejusd. Fl. Cr. Germ.]). 319. Muse. Brit. ed. 

 2. p. 161. Suppl. t. 4. Grev. Sot. Cr. Fl. t. 279.— H. stram- 

 ineum, .3. Schwaegr. Suppl. r. 1. P. II. 



Very rare. Moist bogs and peat-holes on Ben Challum and Ben 

 Lawers, Dr. Greville and Hooker. Fr. . — This is a very beauti- 

 ful plant and assuredly quite distinct from H. stramincum, with which 

 Schwaegrichen has united it as a variety. It is of a dark lurid colour, 

 with remarkably concave and closely imbricated leaves. Our plants 

 exactly accord with those from Norway and Lapland. 



14. H. stram'uK urn, Dieks. (sfrair-lihc Faithcr-Moss); leaves 

 loosely imbricated erecto-patenl oblongo-ovate obtuse entire 

 shining, the nerve reaching half way, capsule oblongo-ovate 

 curved cernuous, lid conical. Dicks. Cr. Fate, I. t. I. t'. ■*• 

 Turn. Muse. Hib. p. 164. Fl. Brit. p. LS03. F. lint. t. 2465. 

 Schwaegr. Suppl. /. 89. Hobs. Br, M<<ss,s. v. 2. n. 59. D>u>u. 



Muse. Sent. r. 1. //. 82. Srhwanjr. Suppl. r. I. V.ll.p. 212, 

 (excl. rar. (3.). Muse. Brit ed. 2. p. 161. t L'4. 



Banks and wet bogs, frequently mixed with other mosses. Abundant 

 on the Breadalbane mountains; very rare in /'/•. ■. on moist Band} places 

 near Dundee (Mr. Drummond); ami Castle Kelly Glen, Ireland, Dr. 



Taylor. /•'/. . — The .slender habit, pale colour and obtuse I 



are striking characters in this Bpecies. It seems to bear fruit almost 



entirely in sandy places, where the teta is half buried in the soil. 



15. 1 1, fliin'sf, ,,s. (pale yellow Feather-3fo$i >.• stems depressed 

 and procumbent thickly matted, leaves ovato-lanceolate acumi- 

 nate entire concave with flattened margins, faintly 2-nerved at 

 tin- base erecto-patenl and slightly secund, seta smooth, capsule 

 ovate cernuous, lid with a long slender beak. Wilt. Met* 



< hi moist ihacrj rocks, by rills in mountainous woods; Best 

 Killarmy, frequent, also near <• Fr. dune, 



July. — M This has no obvious affinity in hal other British spi 



