DiCRANACE^.J 99 [Ditrichum. 



Barbula curta Hedw. Muse. fr. iii, 75, t. 31 B (1792) ; Sp. muse. 115. Brid. Muse. rec. 

 ii, P. I, 192. ScHWAEGR. Suppl. I, P. I, 119. ScHULTZ Rev. gen. Barb. 5, t. 32, f. 2. 



Tortula curta Swartz Muse. Suec. 41. Hook. Grev. in Edin. J. Sei. i, 202. 



Desmatodon curtus Brid. Mant. muse. 87 ; Bry. univ. i, 526. 



Trichostomum tortile Var /?. pusillum Bry. eur. t. 10 ^. 



Hab. — In similar localities and sometimes intermixed with the type. 



Near Belfast (Drummond). Dodge's glen, Cork {Carrol), Castle Howard [A. 0. Black 

 1854) ! ! 



Smaller than the next species with much shorter leaves and the lid with 

 a more pointed beak. 



3. DITRICHUM HOMOMALLITM {Hedm.) Hampe. 



Dioicous ; casspitose, dichotomous ; leaves patent or subsecund, 



from an ovate base, subulate, nerve broad, excurrent in a setaceous 



point, entire. Capsule erect, ovate-oblong, lid conical, obtuse. 



(T. XIV, G.) 



Syn. — Weisia heteronialla Hedw. Muse. fr. i, 22, t. 8 (1787) ; Sp. muse. 72 (1801). Swartz 

 Muse. suec. 26 (1798). Brid. muse. ree. ii, P. I, 77 (1798) ; Sp. muse. I, iig (1806) ; 

 Mant. 47 (i8ig) ; Bry. univ. i, 361 (1826). Roehl. Moosg. Deutsch. 161 (1800) ; Deutsch. 

 Fl. iii, 51 (1813) ; Ann. Wett. Ges. iii, 109 (1814). Schultz F1. Starg. 284 (1806). 

 Schwaegr. Suppl. I, P. I, 68 (1811). Wahlene. Fl. lapp. 321 (1812). 



Afzelia heteromalla Ehrh. PI. erypt. n. 173 (1787). 



Bryum Weisia Dicks. Fase. eryp. II, 5 (1790). With. Bot. arr. Br. veg. 827 (1796). 

 HoFFM. Deutsch. Fl. ii, 33 (1796). Hull Br. Fl. P. 2, 261 (1799). 



Grimmia heteromalla Roth Fl. Germ, iii, 145 (1795). Sm. Fl. Brit, iii, 1194 (1804), Eng. 

 Bot. t. i8gg. Turn. Muse. hib. 30 (1804). Web. Mohr Bot. Tasch. 137 (1807). 



Grimmia homomalla Sm. loc. c. 



Didymodon homomallus Hedw. Sp. muse. 105, t. 23, f. 1-2 (1801). P. Beauv. Prodr. 56 

 (1805). Brid. Sp. muse. I, 161 ; Mant. 102 ; Bry. univ. i, 510. Web. Mohr Bot. Tasch. 

 156. ScHKUHR Deutsch. Kr. Gew. P. 2, 64, t. 29 (1810). Schwaegr. Suppl. I, P. I, 

 n6. VoiT Muse, herbip. 35 {1812). Wahlenb. Fl. lapp. 315. Roehl. Deutsch. Fl. 

 iii, 56; Ann. Wett. Ges. iii, 205. Mart. Fl. cr. erl 96 (1817). Fonck Moost. 21, 

 t. 14 (1821). 



Didymodon heteromallum Hook. Tayl. Muse. Br. 68, t. 20 (1818). Gray Nat. arr. Br. 

 PI. i, 743 (1821). Mack. Fl. hib. P. 2, 19 {1836). 



Trichostomum homomallum Br. Sch. Bry. eur. fase. 18-20, p. 16 t. 12 (1843). Raeenh. 

 Deutsch. Kr. Fl. ii, P. 3, 117 (1848). WiLS. Bry. Brit. 116, t. 20 (1855). Husn. Mouss. 

 nord-ouest 72 (1873). Hobk. Syn. Br. m. 63 (1873). 



Leftotrichum homomallum Hampe Linn. 1847, P- 74' C- Muell. Synops. i, 453 (1849). 

 ScHiMP. Synops. 143 (i860), et 2 ed. 141 (1876). Berk. Handb. Br, m. 263 (1863). 

 MiLDE Bry. siles. 136 (1869). De Not. Epil. Bri. ital. 515 (1869). Jens. Bry. dan. 100. 

 Fl. Dan. t. 2688, f. i. 



Dioicous ; laxly caespitose, pale green, subsericeous ; stem simple 

 or slightly divided. Leaves subsecund, from an ovate base, lanceolate- 

 subulate ; nerve dilated, concave, longly excurrent, quite entire or with 

 a few minute crenulations at point ; perich. bracts sheathing, longer, 

 subfalcate; cells firm, very narrow. Seta tall, straight, purple. Capsule 

 pachydermous, rufous, erect, ovate-oblong or subcylindric ; annulus 

 broad, compound, rolling back spirally ; lid purple, conic, obtuse ; teeth 

 of per. purple, without basal membrane, the legs free or united. 



Male plant slender, dichotomous, bracts lanceolate-subulate. 



