EUROPE AND NORTH AMERICA. 59 



11. Sphagnum squarrosum, Persoon. 



Pl. XIV. 



Monoicous or dioicous ; green, the stem reddish, with two 

 strata of cuticular cells. Stem leaves Ungulate, not bordered ; the 

 apex rounded and slightly fimbriate. Branch leaves squarrose, 

 broadly ovate below, suddenly lanceolate ; the apex minutely 3-4 

 toothed ; bordered with very narrow cells ; chlorophyllose cells 

 compressed, enclosed by the hyaline. Perichaetial bracts obovate, 

 emarginate. 



Synon. — Sph. squarrosum, Pers. Mss. Crome, Samml. Deutsch. Laubm. i. 

 p. 24, n. 3 (1803). Web. Mohr, Naturh. Reise durch Schweden, p. 29, t. 2, f. 1 a 

 et b (1804), et Bot. Tasch. p. 73 (1807). Smith, Eng. Bot. t. 1498 (1804). P. de 

 Beauv. Prodr. p. 88 (1805). La Marck et Cand. Fl. Franc, i. p. 443 (1805). 

 Schultz, Fl. Stargard. p. 276 (1806). Brid. Sp. Muse. i. p. 14 (1806) ; Mantissa, 

 p. 2 (1819), et Bry. Univ. i. p. 5 (1826). Roiil. Ann. Wetter. Gesells. i. p. 197 

 (1809), et Deutschl. Fl. iii. p. 36 (1813). Schkuhr, Deutschl. Moose, p. 14, t. 6 

 (1810). Fl. Danica, t. 1415 (1810). Schwagr. Suppl. I. pt. 1, p. 13, t. 4 (1811). 

 Voit, Muse. Herbip. p. 12 (18 12). Hook. Tayl. Muse. Brit. p. 4, t. 4 (18 18). 

 Funck, Taschenh. t. 2 (1821). Gray, Nat. Arr. Br. PI. i. p. 710, 2 (1821). Zenk. 

 Dietr. Muse. Thuring. n. 21 (182 1). Nees, Hsch. St. Bry. Germ. i. p. 9, t. 1, f. 3 

 (1823). HUben. Muse. Germ. p. 23 (1833). De Not. Syll. Muse. Ital. p. 295 (1838). 

 C. Mull. Synops. i. p. 94 (1849). Wils. Bry. Brit. p. 23, t. 4 (1855). Hartm. Skand. 

 Fl. ed. 6, p. 435 (1854). Sull. Mosses of Un. St. p. 12, n. 9 (1856). Schimp. 

 Torfm. p. 63, t. 22 (1858). Synops. p. 677 (i860), et ed. 2, p. 835 (1876). Lindb. 

 in Ofv. K. Vet. Ak. Forh. xix. p. 139, n. 7 (1862). Berkel. Handb. Br. Mosses, 

 p. 308, t. 2, f. 4 (1863). Russ. Torfm. p. 62 (1865). Schlieph. in Verh. Z. B. 

 Gesel. Wien, 1865, p. 400. Klingg. in Schr. der K. Phys. Oik. Gesel. zu Konigs. 

 1872, p. 7. Milde, Bryol. Siles. p. 387 (1869). Hobk. Synops. p. 26 (1873). 

 Braithw. Sphag. Brit. Exsic. n. 26 (1877). 



Sph. Aconiense, De Not. Mss. 



Sph. patulum, Mitten, Ms^. 



Sph. oblongum, P. Beauv. Prodr. p. 15. Brid. Bryol. Univ. i. p. 6. 



Sph. crassisetum, Bridel, Mantis. Muse. p. 2, et Sp. Muse. i. p. 15. 



Monoicous, or sometimes dioicous ; in loose, deep glaucous- 

 green tufts. Stems robust, decumbent at base, 6-15 in. high, 

 generally dichotomous, rigid, reddish brown ; cuticular cells small, 

 non-porose, in two strata ; the peripheral cells incrassate, rufous 

 brown. Stem leaves large, Ungulate, very narrowly bordered, 

 minutely auricled at base ; apex rounded, slightly fimbriate ; hyaline 

 cells elongated, hexagono-rhomboid below, rhombic above, without 

 fibres or pores, but here and there with a transverse partition. 



Ramuli 4-5 in a fascicle, of which 2-3 are divergent, tumid, 

 attenuated toward the points, with the leaves on the lower two- 



