GRIMMIACE^E.] 39 [Griminia, 



undulato-plicate, the margin revolute, apex lingulate-obtuse, entire or 

 usually remotely hyalino-dentate ; nerve broad, thin, vanishing below 

 apex, cells very small, in one stratum, double at upper margin, roundish 

 at apex, the lower linear, strongly sinuose, at angles laxer, quadrate. 

 Perich. bracts smaller, sheathing. Caps, on a dull red seta, erect, 

 oblong or oblongo-cylindric, short-necked, small-mouthed, dull brown, 

 when old black, annulus broad, lid acicular, half length of caps.; teeth 

 dark red, cleft f to base, legs unequal, subulate, connivent when dry. 

 Male infl. terminal, bracts ovate, pointed. 



HAB. On stones by streams in alpine and subalpine districts. Fr. 3 4. 

 Common in Scotland, Wales, N. of England, and Ireland. 

 Var. (3. denticulata BY. Sch. 



Plants more slender, the leaves laxer, yellowish green, more laxly 

 areolate, more distinctly toothed at apex. 



HAB. Sandy detritus by streams, occasionally in the lowlands. 



31. GRIMMIA AQUATICA (Brid.) C. Muell. 



Dioicous ; rigid, in lax yellow-green mats. Leaves from an ovate 

 base, gradually lanceolate, obtuse, muticous, quite entire at apex, 

 recurved at margin. Capsule ovato-cylindric, pale fuscous, lid acicular ; 

 teeth cleft nearly to base into two legs. (T. LI, B.) 



SYN. Trichostomum aquaticum BRID. Muse. rec. II, P. I, 132, excl. syn. (1798) ? 

 Dicranum aciculare y. graclle TURN. Muse. hib. 67 (1804). 

 Dicranum aquaticum BRID. Sp. muse. I, 190, excl. syn. (1806) ? 

 Trichostomum aciculare ft. aquaticum WEB. MOHR Bot. Tasch. 192 (1807). 

 Trichostomum fasciculare (non SCHRAD.) MOUG. NESTL. Stirp. cr. Vog. then. fasc. 3, n. 



215 (1812). 

 Rhacomitrium aquaticum BRID. Mant. 80, excl. syn. (1819) ? Bry. univ. i, 222, excl. syn. 



(1826). LINDB. Acta soc. sc. fenn. X. 554 (1875). 

 Trichostomum aciculare ft. acutifolium W. ARN. in Mem. soc. d'hist. nat. Par. ii, 271 



(1825). 

 Rhacomitrium cataractarum BRID. Bry. univ. i, 776 (1827). DE NOT. Syllab. 258 (1838). 



HUEBEX. muse. germ. 211 (1833). AONGST. in FRIES Summ. veg. sc. 92 (1846). 

 Tricliostomum obtttsum SCHULTZ in Syll. ratisb. ii, 144, excl. syn. (1828). WALLR. Fl. 



cr. germ, i, 176 (1831) ? 

 Trichostomum protensum BRAUN MSS. SCHULTZ in Syll. ratisb. ii, 145, in obs. (1828). 



DUBY Bot. gall, ii, 573 (1830). 



Trichostomum fasciculare ft. protensum HARTM. Skand. fl. 2 ed. 321 (1832). 

 Rhacomitrium protensum BRAUN MSS. HUEBEN. Muse. germ. 211, ut synon. (1833). 



SCH. Bry. eur. fasc. 2528, p. 6, t. 2 (1845). RABENH. Deutsch. kr. fl. ii, S. 3, 156 (1848). 

 WILS. Bry. brit. 166, t. 45 (1855). HARTM. Skand. fl. 7 ed. 375 (1858). SCHIMP. 

 Synops. 229 (1860), 2 ed. 274. ZETT. Rev. Grimm, scand. 113 (1861). BERK. Handb. 



br. m. 235 (1863). D E NOT. Epil. bri. ital. 676 (1869). MILDE Bry. siles. 156 (1869). 

 HOBK. Syn. br. m. 87 (1873). HUSN. Mouss. nord-ouest 95 (1873), Muse. gall. 139, 

 1.40(1887). LINDB. in Act, soc. sc. fenn. X, 554 (1875). JURATZ. Laubm. oester.-ung. 

 177 (1882). CHALUB. Grimm. Tatr. 90, t. 13 (1882). BOULAY Muse. Fr. 363 (1884). 



