Weberace^.] 292 [Webera. 



Syn. — Sphagnum acaulon maximum, foliis in centra ciUaribus Hall. It. helv. 1739, p. 83, 

 c. icone (1740), Enum. stirp. helv. i, 97 (1742). Dill. Hist. muse. 253, t. 32, f. n 

 (1741), et. Herbar. 



Buxbaimia sessilis Schmid. Diss, de Buxb. 26, t. 2 (1758). Hedw. Fund, ii, g6 (1782). 

 HoFFM. Deutsch. fl. ii, 21 (1795). 



Phascum subidatum Var. ji. HuDS. Fl. angl. 397 (1762). 



Phascum subulatum Oeder FI. dan. t. 249, p.p. (1766). 



Phascum Halleri F. Muell. Fl. fridrichs. 196 (1767). Poll. PI. palat. iii, n. 974 (1777). 



Bryum Halleri Neck. Meth. muse. 233 (1771). 



Phascum maximum Lightf. Fl. scot, ii, 693 (1777). 



Phascum montamim HuDS. Fl. angl. 2 ed. 466 (1778). 



Buxbaumia foliosa Weber Spie. fl. gott. 128 (1778). Swartz Meth. muse. 33, t. 4, f. 2 



(1781), Muse. suee. 74, t. 4, f. 4 (1799). L. Syst. veg. 14 ed. 925 (1784). Roth Tent. 



fl. germ, i, 478 (1788). With. Bot. arr. br. veg. 3 ed. iii, 79o'(i796). Hull Br. fl. 



P. 2, 276 (1799). Brid. Muse. rec. II, P. Ill, 150 (1803). Sm. Eng. Bot. t. 329. 



Fl. brit. iii, 1148 (1804). Turn. Muse. hib. 104 (1804). Schultz Fl. starg, n. 355 



(1806). RoEHL. Deutsch. fl. iii, 120 (1813). Wahlenb. Fl. carp. 363 (1814). Schwaeo. 



Suppl. I, P. II, 65 (1816). Hueben. Muse. germ. 540 (1833). 



Webera Difhyscitmi Ehrh. Hann. mag. 1779, p. 257. Beitr. i, 189 (1787). 

 Bryum phascoides Jacq. Collect, ii, 220 (1788.) 



Diphysciiim foliosum Mohr Obs. bot. 34 {1803). Web. Mohr Bot. Tasch. 377,1. 11, 

 f. I (1807). VoiT Muse. herb. 112 (1812). Brid. Sp. muse. Ill, 112' (1817), Mant. 123 

 (1819), Bry. univ. i, 326 (1826). Mart. Fl. cr. erl. 85 (1817). Hook. Tayl. Muse. br. 

 16, t. 8 (1818). FuNCK Moost. 37, t. 24 (1821). Gray Nat. arr. br. pi. i, 717 (1821). 

 Hook. Fl. scot. P. II, 124 (1821), Br. fl. ii, 13 (1833), Fl. Lond. Hartm. Skand. fl. 

 Mack. Fl. hib. P. 2, 12 (1836). Br. Schimp. Bry. eur. fasc. i, t. -z, et fasc. 64, Suppl. 

 (1837}. De Not. Syll. 145 (1838), Epil. bri. ital. 349 (1869). Raeenh. Deutsch. kr. fl. 

 ii, S. 3, 240 (1848). C. Muell. Synops. i, 812 (1849). WiLs. Bry. brit. 2or, t. 8 

 (1855). Jens. Bry. dan. t. 8, f. 40 (1856). Schimp. Synops. 451 (i860), 2 ed. 547. 

 Berk. Handb. br. m. 214, t. 19, f. 5 (1863). Milde Bry. siles. 254 (1869). Hobk. 

 Syn. br. m. 99 (1873). HuSN. Mouss. nord-ouest 138 (1873). Juratz. Laubm. oesterr.- 

 ung. 351 (1882). Lesq. James Mosses N. Amer. 267 (1844). 



Hymenopogon heterophyllum P. Beauv. Prodr. 60 (1805). 



Diphyscium sessile Lindb. in Oefv. Vet. Ak. foerh. xx, 303 (1863). 



Webera sessilis LiNDB. in Op. c. 394, in obs. (1863) et xxi, 576, in nota (1864) ; in Not. 

 saells. pro Fauna et fl. fenn. foerh. ix, 157 (1867). 



Dioicous; brown or blackish green, in expanded tufts. Stems very 

 short, radiculose ; leaves Ungulate, curled when dry, chlorophyllose, 

 thick, of three strata of minute rounded hexagonal cells above, narrowly 

 rectangular at base ; apex concave, obtuse, the margin crenulate with 

 proj'ecting cells, nerve vanishing below apex. Perich. bracts very large, 

 rufescent at base, ovato-lanc, thin and membranous without chloro- 

 phyl, deeply serrate or lacerate and ciliate at apex, the nerve excurrent 

 in a long roughish piliform arista, cells quadrate and rectangular, 

 hyaline, with incrassate transverse walls. Caps, immersed in the 

 perichsetium, pale yellowish-brown, leptodermous, ventricosely ovato- 

 conic, oblique ; mouth small with an annulus of a single series of cells ; 

 lid conic, acuminate, peristome none or represented by irregular pro- 

 jecting fragments of tissue ; endostome a white membrane twisted in a 

 cone, i6-carinato-plicate, the ridges thickened and papillose; spores 

 minute, smooth, green. 



