ToRTULACE^.] 192 [Pottia. 



3. PHASCUM CUEVICOLLE Ehfh. 



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

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

 (T. XXVIII, A.) 



SYN.—Phascum curvicollum Ehrh. MSS. et Beitr. iv, 44 (1789). Hedw. St. crypt, i, 31, t. 11 

 (1787) ; Sp. muse. 21 (1801). Roth F1. germ, i, 452 (1788), iii, P. I, 114. Dicks. Crypt, 

 fasc. II, I {1790). ScHRAD. Fl. germ. 58 (1794). Relh. F1. 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. ree. II, P. I, n (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. br!t. 1153(1804). P. Beauv. Prodr. 82 (1805). Web. Mohr 

 Bot. Taseh. 65, t. 6, f. i (1807). Schkuhr Deutsch. kr. gew. P. 2, 4, t. i {1810). 

 ScHWAEG. Suppl. I, P. I, 7 (x8ii). VoiT Musc. herb. 6 (i8r2). La Pyl. Journ. Bot. 

 1813, 279, t. ig, f. 9. Hook. Tayl. Musc. 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.'s, f. 

 12 (1823). Hartm. Skand. fl. 380. Hueben. Musc. germ. 13 (1833). Hook. Br. fl. ii, 

 4 (1833). Mack. Fl. bib. P. 2, 8 (1836). Br. Schimp. Bry. eur. fasc. i, p. 11, 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 (i860). Lindb. de Tort. 217 (1864). Jaeg. Ber. St. Gall. nat. 

 ges. 1869, p. 82. Milde Bry. siles. 93 (i86g). Hobk. Syn. br. m. 28 (1873). Husn. 

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



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



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



Cycnca curvicolla Berk. Handb. br. m. 301 (1863). 



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

 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. jf. Leefe 1823) ! 

 Newhaven^(Bo)-re)') ! Burling gap and Goodwood racecourse (jfenner 1835) ! Rottingdean 

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

 ford (D;-. Woorf) ! Colwyn {Palgrave 1862)! Dublin. Ilsington, and CJatdown, 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, quadrato- 

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

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



