DICRANACE^;.] 105 {Dicranella. 



After some hesitation I have adopted Mr. Mitten's genus Anisothecittm, 

 usually combined with Dicranella, not so much from the convenience it affords 

 in dividing some 80 species, as from the belief that it is a natural one, though 

 difficult to define in words ; in both genera, the absence of inflated cells at 

 the basal angles of the leaf will at once separate the species from Dicmnum. 



CLAVIS TO THE SPECIES. 



Seta red. 



Leaves divaricate, flexuose. crispa. 



Leaves secund. 



Capsule cernuous, perich. bracts sheathing. secunda. 



Capsule suberect, perich. bracts not sheathing. curvata. 



Seta pale straw color. 



Capsule oblong, tapering at neck. heteromalla. 



Capsule gibbous, strumose at neck. cerviculata. 



i. DICRANELLA CRISPA (Ehrh.) ScUmp. 



Autoicous or dioicous ; small, slender, leaves from a semivaginant 

 base, subulate, flexuoso-patent. Capsule erect, oval, striate ; lid rostrate. 

 (T. XV, D.) 



SYN. Dicranwn crispum EHRH. MSS. HEDW. Stirp. cr. ii, 91, t. 33 (1788) ; Sp. muse. 133 (1801). 

 SWARTZ Muse. suec. 37 (1798). BRID. Muse. rec. ii, P. I, 161 (1798), Sp. muse. I, 199 

 (1806), Mant. 64 (1819), Bry. univ. i, 451 (1826). ROEHL. Moosg. Deutsch. 334 (1800), 

 Deutsch. Fl. iii, 70 (1813). 'SM. Eng. Bot. t. 1151 (1803), Fl. Brit, iii, 1207 (1804). 

 TURN. Muse. hib. 65 (1804). P- BEAUV. Prodr. 53 (1805). WEB. MOHR Bot. Tasch. 

 185 (1807). SCHWAEGR. Suppl. I, P. I, 179 (1811). WAHLENB. Fl. lapp. 341 (1812). 

 HOOK. TAYL. Muse. Br. 56, t. 17 (1818). GRAY Nat. arr. Br. pi. i, 737 (1821). HOOK. 

 Fl. Scot. P. 2, 133 (1821) ; Br. Fl. ii, 41 (1833). HUEBEN. Muse. germ. 265 (1833). 

 MACK. Fl. hib. P. 2, 23 (1836). RABENH. Deutsch. Kr. Fl. ii, S. 3, 139 (1848). BR. SCH. 

 Bry. eur. fasc. 37-40, p. 20, t. 8 (1847). WILS. Bry. Brit. 70, t. 17 (1855). HUSN. Mouss. 

 nord-ouest 48 (1873). HOBK. Syn. Br. m. 41 (1873). 



Bryum vaginale DICKS. PI. cr. Brit. fasc. Ill, 8 (1793). WITH. Bot. arr. Br. veg. 3 ed. iii, 



827 (1796). HULL Br. Fl. P. 2, 261 (1799). 

 Angstrocmia crispa C. MUELL. Synops. 439 (1849). 

 Dicranella crispa SCHIMP. Coroll. 13 (1855), Synops. 69 (1860), et 2 ed. 70 (1876). BERK. 



Handb. Br. m. 280 (1863). MILDE Bry. siles. 57 (1869). DE NOT. Epil. Bri. ital. 



641 (1869). 



Autoicous or dioicous ; small, slender, laxly caespitose, glossy 

 yellowish ; leaves from a broad semivaginant base, abruptly subulate, 

 flexuoso-patulous or subfalcate, crisped when dry, minutely toothed at 

 apex ; cells elongated. Capsule rufous, erect, obovate or oval, striate, 

 sulcate when dry, on a purple seta ; lid with a subulate beak, crenulate 

 at base ; annulus very narrow ; teeth red, cleft to middle. Male on a 

 proper branch or on a distinct plant ; bracts resembling the leaves of 

 stem. 

 HAB. Wet sandy ground ; not common. Fr. 8. 



N. of Ireland (Miss Hutchins 1808) ! Belfast (Temple ton). Herringfleet (Turner 1809) ! 

 Birmingham (Mackay). Near Paisley (D. Don). Kenmore (Hooker 1829). Forfar 

 (Arnott 1825). Gale green, Pilkington, Orford mount and Thelwall, Warrington (Wilson 

 1847) ' ' Broken brow, Prestwich and Alderley edge (Hunt 1863) I 1 



