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IN.— On Bog Mosses. By E. Braithwaite, M.D., F.L.S. 



Group D. Cuspidata. — Plants rather rigid, loosely matted. 

 Branch leaves erecto-patent, narrowly lanceolate, acute or much 

 acuminate, truncate and toothed at apex, margin more or less 

 bordered, involute at point. 



11. Sphagnum acutifohum Ehrhart. 



Plant, Crypt, exsic. No. 72 (1786). 



Plates LVII. and LVin. 



Syn. — Sphagnum palustre, niolle dcflexum, squanis capillaceis. DiLLEN. Hist. 

 Muse. p. 243, tab. XXXII. fig. 2a. (ll^l).—Sph. pdustre 0. l. Sp. Plant, p. 1569 

 (1763)._Hedw. Fund. Muse. I. T. III. fig. 13-15 (1781).— Sjyh. amtifolium Ehrh. 

 1. c. — ScHEADER Spicil. Fl. GeiTO. p. 58 (1794). — Schultz F1. Stargard. p. 275 

 (1806).— Web. & Mohr, Bot. Tasch. p. 73 (1807).— Schkuhk, Deutsch. Moose 

 p. 15, t. 6 (1810).— VoiT, Muse. Herbip. p. 12 (1812).— Schwagr, Supp. I. P. I. 

 p. 15, t. 5 (1811).— RoHLiNG, Deutsch. Fl. III. p. 36 (1813).— Hook. & Tatl. 

 Muse. Brit. p. 4, t. IV (1818).— Funck, Tascbeuh. p. 5, t. 3 (1821).— Zenk. & 

 DiETR. Muse. Tburing, F. 1, No. 20 (1821).— Nees Hsch. & St. Bry. Germ. I. 

 p. 19, t. III. fig. 8 (1823).— HiJBEX, Muse. Germ. p. 28(1833).— De Notaris, Syll. 

 Muse. Ital. p. 297 (1838).— Dozy & Molkenb. Prodr. Fl. Batav. p. 78 (1848).- 

 C. IMijLL. Synop. I. p. 96 (1849).— Wils. Bry. Brit. p. 20, T. IV (1855).- Hartm. 

 Skand. Fl.— Schimp. Torfm. p. 56, Tab. XIII. (1858).— Synop. p. 672 (I860).— 

 LiNDB. Torfm. No. 5 (1862).— Berkel. Handb. Br. Mosses, p. 307, Pi. 2, fig. 4 

 (1863). R1J.SSOW, Torfm. p. 37 (18G5). Milde, Bry. Siles. p. 381 (1869). Sph. 

 capillifoUum SwARTZ, Act. Holm. 1795, p. 281. — Bridel, Muse. Rec. II. pt. 1, p. 24 

 (1798). Sp. Muse. I. p. 16 (1806). Mantissa, p. 1 (1819). Bry. Univ. I. p. 11 

 (1826).— Hedw. Sp. Muse. p. 28 (1801).— Smith, Fl. Brit. p. 1146 (1804). Eug. 

 Bot. t. 1406 (1805).— Turner, Muse. Hibern. p. 6 (1804).— P. Beauv. Proclr. p. 87 

 (1805). Sph. capillaceum Swaktz, Muse. Suee. p. 18 (1798). — Wahlenb. Fl. Lapp, 

 p. 302 (1812). Fl. Carpat. p. 333 (1814). S. capill if olio ides Breutel, Bot. Zeit. 

 1824, p. 438. — Brid. Bry. Un. I. p. 751. Sph. Ascherhachianuni Bbeut. 1. c. p. 439. 



EXPLANATION OF PLATES. 

 Plate LVII. 

 Sphagnum acutifolium. 

 a. — Plant of the typical form. 

 1. — Part of stem with a branch fascicle. 



2.— Catkin of male inflorescence. 2 b. — Bract from same with an antheridium. 

 3. — Fruit and perichsetium. 4. — Bract from same. 

 5, — Stem leaves. 5 a a. — Areolation of apex of same. 

 6. — Leaves from middle of a divergent branch. 

 6 a b. — Areolation of base. 6 x. — Transverse section. 

 6 j5.— Point of same. 6 c. — Cell from middle x 200. 7. — Basal intermediate 



leaves. 8. — Leaf from a pendent branch. 

 9 X. — Part of section of stem. 

 10. — Part of a branch denuded of leaves. 



Plate LVIII. 

 Sphagnum acutifolium. 

 j8. — Var. deflexum. 

 e. — „ tenellum. 

 5. — „ purpureum. 

 Q. — „ fuseum. 

 T). — „ luridum. 

 5.— Stem leaves. 6.— Branch leaves. 



VOL. XI. N 



