TORTULACE.E.J 192 [Pottia. 



3. PHASCUM CURVICOLLE Ehrh. 



Paroicous ; leaves crowded, ovato-lanceolate, denticulate and pale 

 at tip. Caps, ovate, acuminate, purple, cernuous on an arcuate pedicel. 

 (T. XXVIII, A.) 



SYN. Phascum ciirvicollum EHRH. MSS. et Beitr. iv, 44 (1789). HEDW. St. crypt, i, 31, t. n 

 (1787) ; Sp. muse. 21 (1801). ROTH Fl. germ, i, 452 (1788), iii, P. I, 114. DICKS. Crypt, 

 fasc. II, i (1790). SCHRAD. Fl. germ. 58 (1794)- RELH. Fl. Cant. Suppl. 3, p. 8 (1795)- 

 WITH. Bot. arr. br. veg. 3 ed. iii, 786 (1796). HOFFM. Deutsch. Fl. ii, 26 (1795). 

 ABBOT Fl. bedf. 230 (1798). BRID. Muse. rec. II, P. I, 11 (1798) ; Sp. Muse. I, 2 (1806) ; 

 Mant. 5 (1819) ; Bry. univ. i. 24 (1826). HULL Br. fl. P. 2, 251 (1799). ROEHL. Moosg. 

 deutsch. 17 (1800) ; Ann. Wett. ges. i, 187 (1809) ; Deutsch. fl. iii, 33 (1813). SM. Eng. 

 Bot. t. 905 (1801) ; Fl. brlt. 1153(1804). P. tfEAUV. Prodr. 82 (1805). WEB. MOHR 

 Bot. Tasch. 65, t. 6, f. i (1807). SCHKUHR Deutsch. kr. gew. P. 2, 4, t. i (1810). 

 SCHWAEG. Suppl. I, P. I, 7 (1811). VOIT Muse. herb. 6 (1812). LA PYL. Journ. Bot. 



1813, 279, t. 19, f. 9. HOOK. TAYL. Muse. brit. 9, t. 5 (1818). FUNCK Moost. 2, t. i 

 (1821). GRAY Nat. arr. br. pi. i, 712 (1821). NEES HORNSCH. Bry. germ, i, 55, t. 5, f. 

 12 (1823). HARTM. Skand. fl. 380. HUEBEN. Muse. germ. 13 (1833). HOOK. Br. fl. ii, 



4 (1833). MACK. Fl. hib. P. 2, 8 (1836). BR. SCHIMP. Bry. eur. fasc. i, p. n, t. 4 (1837) > 

 et f. 43, t. 2. DE NOT. Syll. 302 (1838), Epil. 735 (1869). C. MUELL. Synops. i, 27 

 (1849). RABENH. Deutsch. kr. fl. ii, P. 3, 83 (1848). WILS. Bry. br. 30, t. 5 (1855). 

 SCHIMP Synops. 19 (1860). LINDB. de Tort. 217 (1864). JAEG. Ber. St. Gall. nat. 

 ges. 1869, p. 82. MILDE Bry. siles. 93 (1869). HOBK. Syn. br. m. 28 (1873). HUSN. 

 Mouss. nord-ouest. 35 (1873). JURATZ. Laubm. oester.-ung. 90 (1882). 



Phase, cernuum GMEL. in L. Syst. nat. 13 ed. ii, P. II, 1323 (1791). 



Pottia curvicollis MITT, in Ann. Mag. Nat. hist. 1851, p. 311. 



Cycnea curvicolla BERK. Handb. br. m. 301 (1863). 



Paroicous and synoicous ; short, slender, gregarious or subcaes- 

 pitant, rufescent. Leaves crowded, erecto-patent, subimbricated, 

 ferruginous green, pale at apex, lower ovate acuminate, upper elongato- 

 lanceolate, cuspidate with the solid rufous excurrent nerve, margin 

 entire, subreflexed, upper cells small hexagonal, chlorophyllose, 

 papillose. Caps, solitary or several in one perich. rufous-purple, oval 

 with a short apiculus, on a pale cygneous pedicel emerging laterally 

 from the perich. leptodermous subpendulous ; cal. pale, reaching below 

 middle of caps., spores pale yellow, faintly papillose. 



HAB. Moist banks and fields ; not common. Fr. 2 4. 



Croydon (Dickson). Clapham, Beds. (Abbot). Audley End, Essex (Rev. J. Leefe 1823) ! 

 Newhaven (Borrer) ! Burling gap and Goodwood racecourse (Jenner 1835) ! Rottingdean 

 (Davies) ! ! Hurstpierpoint (Mitten) ! Todmorden (Nowell) \ \ Pontefract and Castle- 

 ford (Dr. Wood) \ Colwyn (Palgrave 1862) ! Dublin. Ilsington, and Catdown, Devon 

 (Holmes). 



4. POTTIA EHRH. 



(Beitraege i, 175 (1787) .) 



Plants simple or divided from the base, csespitose or pulvinate. 

 Leaves broad, enlarging upward, oblong acuminate, soft, opake, usually 

 papillose ; areolation lax, rectangular and hyaline at base, quadrate- 

 hexagonal and chlorophyllose above. Calyptra cucullate. Caps, erect, 

 turbinate or subcylindric, in a few remaining closed, or gymnostomous, 



