TORTULACE^.] 197 [Pottia. 



Bryum inmcaium Gmel. in L. Syst. nat. 13 ed. ii, P II, 1334 (1791). 



Gymnast, truncatum yS. minus Web. Mohr Bot. Tasch. 81 (1807). VoiT Muse. herb. 15 

 (1812). 



Gymnast, circumscissum Roehl. in Ann. Wett. ges. ii, P. I, 122 {1810), Deutseh. fl. iii, 38 



(1813). 

 Pottia truncata Fuernr. in Flora xii, P. II, Ergang. 10 (1829). Bruch Schimp. Bry. 



eur. fasc. 18—20, p. g, t. 4 (1843). Fiedl. Laubm. meckl. 42 (1844). Rabenh. 



Deutseh. kr. fl. ii, s. 3, 97 (1848). Wils. Bry. br. 94, t. 7 (1855). Schimp. Synops. 123 



(i85o), 2 ed. 152 (1876). Berk. Handb. br. m. 270 (1863). Milde Bry. siles. 97 



(1869). De Not. Epil. bri. it. 589 (1869). Hobk. Syn. br. m. 55 (1873). Husn. 



JVtousses nord-ouest. 65 (1873). Juratz. Laubm. oester.-ung. 92 (1882). Lescj. James 



Mosses N. Amer. loi (1884). 

 Pottia eustama Var. p. truncata Hampe in Flora xx, P. I, 287 (1837). 

 Pottia eustoma C. Muell. Synops. i, 553 (1849). 

 Pottia truncatula Lindb. de Tort. 220 (1864). 

 Tortula truncatula Lindb. Muse, scand. 21 (1879). 



Autoicous ; csespitose or densely gregarious, simple or dichotomous, 

 deep green. Leaves obovate-oblong and subspathulate, shortly acu- 

 minate, mucronate with the excurrent nerve, patent and patulous, 

 widely concave at base, carinate toward apex, plane at margin, soft, 

 smooth ; cells at base hexagono-rectang. above large rounded-hexagonal, 

 chlorophyllose. Seta short, reddish ; caps, subglobose-turbinate, con- 

 stricted below the mouth, when empty truncate and nearly hemispherical, 

 fuscous, leptodermous, exannulate ; cal. smooth ; lid plano-convex, with 

 a longer or shorter oblique beak, falling with the columella attached ; 

 spores nearly smooth, brown. 



Male infi. gemmiform, in axils of upper leaves, bracts 2 — 3, ovate- 

 acuminate, nerveless. 



Hab. — Fallow ground in fields and gardens and on hedge-banks ; common. 

 Fr. 1—3. 



This common plant varies considerably in size and in the form of the 

 fruit at maturity and after the lid is cast off, but is easily recognised by the 

 bright green, large celled leaves, and wide mouthed capsule. 



5. POTTIA INTERMEDIA {Turn.) Fuernr. 



Resembling P. truncatula, but larger. Leaves oblong, apiculate, 

 margin revolute to above middle. Caps, obovate or subcylindric, 

 annulate. (T. XXVIII, F.) 



Syn. — Brytim cxiguum crehcrrimis capsulis rujis, Var. major DiLi>. Hist. muse. 347, t. 45, f. 7 

 F-k (1741), et Herbar. 



Pottia eustoma V3.V. major Ehrh. Beitr. i, 188 (1787). C. Muell. Synops. i, 554 (1849). 



Gymnostomum intermedium Turn. Muse, bib, 7, t. 1, fg. a-e (1804). Sm. H. brit. iii, ii6g 

 (1804), Eng. Bot. t. 1976. Brid. Sp. muse. I, 31 (1806), Mant. 13 (1819), Bry. univ. i, 

 69 (1826). Schwaeg. Suppl I, P. I, ig, t. 7 (1811). Mart. Fl. cr. erl. 124 (1817), 

 ScHULTZ Suppl. Fl. starg. 65 (i8ig). Funck Moost. 6, t. 4 (1821). Nees Hornsch. 

 Bry. germ, i, 135, t. g, f. 7 (1823). Hueeen. Muse. germ. 40 (1833). De Not. Syllab. 

 286 (1838). 



Gymnast, truncatum Roehl. in Ann. Wett. ges. ii, P. I, 122 (1810), Deutseh. fl. iii, 38. 



Gymnast, truncatum Var. majus Wee. Mohr Bot. Tasch. 81 (1807). Voit Muse. herb. 

 15 (1812). Wahlenb. Fl. earp. 333 (1814). 



