Hijjmum.} MUSCI-PLEUROCARPI-PERISTOMI. 91 



p. 183. Fl. Brit. p. 1322. E. Bot. t. 1302. Schivaegr. 

 Suppl. v. 3. p. 144. Hobs. Br. Mosses, v. 2. n. 69. Drum. Muse. 

 Scot. v. 2. n. 76.— Dill Muse. t. 39. /. 35 — ,3. minus. H. 

 squarrulosum, E. Bot. t. 1709. — H. polymorphum, Funck, 

 Deutschl. Moose, t. 39. f. 35. 



In marshes. /3. On stone walls and rocks. Fr. May. — The larger 

 and more usual state of this plant is erect and of a fine yellow-brown 

 colour ; the smaller is creeping, of a green colour and has the leaves 

 somewhat more recurved. 



54. H. Halleri, Linn. (Hallerian Feather -Moss); stems creep- 

 ing with short erect brandies, leaves broadly ovate acuminate 

 serrated very obscurely and shortly 2-nerved their extremities 

 remarkably recurved, capsule oblongo-ovate cernuous, lid 

 conical. Linn. Diss. Muse. p. 34. Hedw. St. Or. v. 4. ^.21. 

 Schivaegr. Suppl. v. 1. P. II. p. 283, {excl. the syn. of H. dimor- 

 phum). Grev. Scot. Cr. Fl. t. 174. Muse. Brit. ed. 2. p. 180. 

 Suppl. t. 5. 



Rocks on Ben Lawers, Scotland, extremely rare ; Grcvil/e, Arnott, 



Hook. Fr. . — This moss is remarkable for its regular and much 



recurved leaves. Although so rare in Britain, it is abundant in Switzer- 

 land. 



55. H. dimorphum, Brid. {dimorphous Feather- Moss); stems 

 vaguely pinnated, leaves cordato-ovate concave serrulated 

 erecto-patent obscurely 2-nerved at the base those of tin- stems 

 acuminated and reflexed at the extremity those of the branches 

 acute and nearly straight, capsule ovate cernuous, lid conical. 

 Brid. Meth. p. 165. Grev. Scot. Cr. Fl. t. 160. Muse. Brit. 

 ed. 2. p. 181. Suppl. t. 5. — H. Halleii, var. Schivaegr. SttppL 

 v. 1. P. II. p. 235. 



Under rocks, in very shady places, upon Ben Lawers, Mr. Arnott. 



Fr. . — Dr. Schwaegrichen and Mr. Wilson, two high authorities, arc 



disposed to consider this atwrr. or state of II. Halleri ; and the fact of their 

 being found upon one and the same mountain, ami only there, would 

 seem to strengthen such an opinion. 



56. II. Ion /////, J, inn. (rambling mountain l\<itln r-Mo$s); 



Leaves recurved BquaiTOSe lanceolate much acuminated concave 



serrated striated faintly 2-nerved at the base, capsule ovato- 

 globose cernuouBj lul hemispherical suddenly apiculated. Linn. 



Sp. l'l.p. 1593. Fum. Muse. 11,1, . r . is.*.' Fl. lint. p. 1824. 

 /.'. in. t. 2072. Sckwaegr. SuppL r. I. l\ II. r . 293. Hobs. 



fir. Masses, r. I. //. 91. Drum. Muse. Scot. r. 2. //. 77. Muse, 

 lint. id. 2. p. 181. /. -IW.— lhll. Muse. t. 39./ -1«». 



Woods and on heaths, among bushes. /•>. Dec — From a span t<> a 

 font in length, scarce!) thickened at the extremity of the stem; the 

 lower branches attenuated ami often rooting. Leave* frequently nib- 

 lecund. 



.")". If. t nijiii/riiui. Linn. ( t riipn t mus I : < t///n r- W<> Rl >; leaves 



•emanate oordate gradually acuminated plain- serrated faintly 



striated with two nerves m the DM6, capsule OVUtO-glo- 



