DiCRANACEiE.] 107 [Dicranella. 



Angstroemia curvaia C. Muell. Synops. i, 433 (1849). 



Dicranella curvata Schimp. CoroU. 13 (1855), Synops. 75 (1860), et 2 ed. 76 (1876). Milde 

 Bry. siles. 60 (1869). 



Dioicous ; slender, laxly csespitose, dull yellowish-green ; leaves 



from a shorter semivaginant ovate base, setaceous, falcato-secund, 



channelled, minutely denticulate at apex; cells elongated, very narrow 



toward margin ; perich. bracts thinner and with longer lamina. Capsule 



on a pale red seta, erect or a little inclined, ovate-oblong, equal, pale 



brown, annulate, striate ; lid, peristome and male plant as in D. secunda. 



Hab. — Wet sandstone rocks and sides of hollow ways ; rare. Fr. 10 — i. 



Cwm Gafr near Llanberis {Wilson 1830) ! ! Dolgelly (Wilson). Hills of Dunoon, 

 Greenock (Drummond Brit. Mosses 115). 



Very close to the preceding and probably often confounded with it ; 

 in Europe it appears to be confined to the more southern portion of the 

 central part. 



4. DICRANELLA HETEROMALLA {Dill. L.) Schimp. 

 Dioicous ; densely csespitose, silky green ; leaves arcuato-secund, 

 lanceolate, suddenly setaceous. Seta yellowish. Capsule suberect, 

 oblong, slightly curved ; lid subulate. (T. XV, G.) 



Syn. — Miiscus trichoides , foliis capillaceis, capitiilis minoribus. Doody, Ray Syn. stirp. Brit. App. 

 243 (1690). 



Bryum trichoides, rccUnatis cauliculis, capitulis erectis acutis Dill, in Ray Syn. 3 ed. 96, 

 n. 23 (1724). 



Bryum heteromallum Dill. Hist. muse. 375, t. 47, f. 37 (1741). L. Sp. pi. ii, 1118 (1753) ; 

 Fl. suec. ggg. Hubs. F1. angl. 408 (1762). Oeder F1. dan. t. 479 (1769). Neck. Meth. 

 muse. 2og (1771). With. Bot. arr. Br. veg. ii, 674 (1776). Lightf. Fl. scot, ii, 726 

 (1777). Relhan Fl. cant. 404 (1785). Hoffm. Deutsch. Fl. ii, 38 (1796). Hull. Br. 

 Fl. P. 2, 263 (1799). Abbot Fl. Bedf. 240 (1798). 



Hypnum heterom. Weiss Cr. Goett. 215 (1770). Weber Spic. Fl. Goett 72 (1778). 



Fuscina heterom. Schrank Bayers. Fl. ii, 454 (1789), Pr. Fl. Salisb. n. 829 (1792). 



Dicranum heterom. Hedw. Stirp. cr. i, 68, t. 26 (1787), Sp. muse. 128 (1801). Roth Fl. 

 germ, i, 460 (1788), iii. 160. Sibth. Fl. oxon. 282 (1794). Swartz Muse. Suec. 37 

 (1798). Brid. Muse. rec. ii. P. 1, 128, t. 3. f. 18 (1798), Sp. muse. I, 181 (1806), 

 Mant. 69 (i8ig), Bry. univ. i, 423 (1826). Roehl. Moosg. Deutsch. 319 (1800), 

 Deutsch. Fl. iii, 72 (1813). Sm. Fl. Brit, iii, 1204 (1804) ; Eng. Bot. t. 1272. 

 Turn. Muse. hib. 61 (1804). P. Beauv. Prodr. 54 (1805). Schultz Fl. Starg. 

 296 (1806). Web. Mohr Bot. Tasch. 190 (1807). Schwaegr. Suppl. I, P. I, 

 173 (1811). Voit Muse, herbip. 42 (1812). Mart. Fl. cr. erl. 98 (1817). Hook. Tayl. 

 Muse. Brit. 59, t. 18 (1818). Funck Moost. 28, t. 19 (1821). Gray Nat. arr. Br. pi. i, 

 738 (1821). Hook. Fl. scot. P. 2, 134 (1821) ; Br. Fl. ii, 42 (1833). Hueben. Muse, 

 germ. 257 (1833). Mack. Fl. hib. P. 2, 24 (1836). De Not. Syll. muse. n. 292 (1838), 

 Epil. Bri. ital. 634 (1869). Rabenh. Deutsch. Kr. Fl. ii, S. 3, 141 (1848). Br. Sch. 

 Bry. eur. fasc. 37-40, p. 25, t. 15 (1847). Wils. Bry. Brit. 73, t. 18 (1855). HusN. 

 Mouss. nord-ouest 51 (1873). Hobk. Syn. Br. m. 44 (1873). 



Angstroemia heterom. C. Muell. i, 433 (1849). 



Dicranella heterom. Schimp. Coroll. 13 {1855), Synops. 75 (i860), et 2 ed. 77 (1876). Berk. 

 Handb. Br. m. 283, t. 23, f. 8 (1863). Milde. Bry. siles. 61 (1869). 



Dioicous ; in dense silky bright green or yellow-green patches. 

 Stem erect | — 2 in. high, slender, with rufous radicles at base, simple or 

 bipartite; leaves arcuato or hamato-secund, from a broad lanceolate 

 base, suddenly setaceous, channelled, the point nearly entire or minutely 



