D ICRANACE^E.] 158 [Dicmnum. 



it may be readily known by its very dense acute entire-pointed leaves and 

 stout excurrent nerve. From D. fuscescetis, which it also resembles, its very 

 acute entire smooth subula will always separate it. 



1 8. DICRANUM SAUTERI BY. Sch. 



Dioicious ; in large soft silky tufts ; leaves falcato-secund, lanc.- 

 subulate, entire, nerve one-fifth width of base ; caps, elliptico-cylindric, 

 lid obliquely rostrate. (T. XXIV, A.) 



SYN. Dicranum Sauteri BR. SCH. Bry. eur. fasc. 37-41, p. 33, t. 24 (1847). C. MUELL. Synops. 

 i, 375 (1849). SCHIMP. Synops. 85 (1860), 2 ed. 87 (1876). DE NOT. Epil. bri. ital. 626 

 (1869). MILDE Bry. siles. 68 (1869). JURATZ. Laubm. Oesterr.-ung. 43 (1882). 



Dioicous ; in dense cushioned glossy green tufts, becoming fulvous, 

 fuscous at base, with brown tomentum. Leaves very dense, rather rigid, 

 secund or falcate, channelled, lanceolate, gradually subulate, entire or 

 with a few teeth at point, nerve one-fifth width of base, excurrent, cells 

 at base narrow and elongated, angular lax, quadrate, brown, upper 

 elongated. Perich. bracts sheathing, longly subulate, caps, cylindra- 

 ceous, erect, slightly asymmetric, annulus simple, lid conic, obliquely 

 rostrate, long as capsule, teeth red, cleft one-third. 



Male plant shorter, slender. 



Var. ft. curvulum Lindb. 



Capsule horizontal, more or less curved. 



HAB. Sub-alpine rocks ; very rare. Fr. 8 9. 



The var. ^8. only is with some doubt admitted as British, and its claim 

 as such rests on specimens in a collection of the late A. O. Black, unnamed 

 and mixed with D. molle andfukatum, the labels bearing localities in Braemar 

 (Cairn Taggart, Loch-na-Neem and Freuch Corrie) ; Prof. Lindberg identi- 

 fied it with a precisely similar form found in the Pyrenees. The Marchese 

 Bottini regards D. Sauteri as a variety of D. longifolium, from which it seems 

 to me to be sufficiently distinct in the leaf-base and section of nerve. 



19. DICRANUM LONGIFOLIUM Ehrk. 



Dioicous ; in large soft silky pale green tufts ; leaves falcato-secund, 

 lane. -subulate, serrulate above at back and margin, nerve one-third 

 width of base ; caps, cylindraceous, lid pale, obliquely subulate. (T. 

 XXIV, B.) 



SYN. Dicranum longifolium EHRH. Dec. crypt, n. 114 (1786). HEDW. muse. fr. iii, 24. t. 9 

 (1792), Sp. muse. 130 (1801). ROTH Fl. germ iii, P. I, 166 (1795)- BRID. muse. rec. II, 

 P. I, 161 (1798), Sp. muse. I, 183 (1806), Mant, 60 (1819), Bry. univ. i, 430 (1826). 

 SWARTZ muse. suec. 34 (1799). ROEHL. Moosg. deutsch. 334 (1800), Deutsch. fl. iii, 66 

 (1813). SCHULTZ Fl. starg. 297 (1806). WEB. MOHR Bot.Tasch. 172 (1807). SCHWAEG. 

 Suppl. I, P. I, 176 (1811). VOIT muse. herb. 42 (1812). WAHLENB. Fl. carp. 344 

 (1814). FUNCK Moost. 29, t. 20 (1821). HUEBEN. muse. germ. 248 (1833). DE NOT. 

 Syll. muse. 215 (1838), Epil. bri. ital. 625 (1869). HARTM. Skand. Fl. BRUCH SCHIMP. 

 Bry. eur. fasc. 37-40, p. 32, t. 25 (1847). RABEN. Deutsch, kr. fl. ii, P. 3, 144 (1848). 

 C. MUELL. Synops. i, 371 (1849). SCHIMP. Synops. 84 (1860), 2 ed. 86 (1876). MILDE 

 Bry. siles. 67 (1869). HOBK. Syn. br. m. 46 (1873). JURATZ. Laubm. Oesterr.-ung. 43 

 (1882). 

 Dicr. Stirtoni WILS. MSS. a short leaved form. 



