ToRTULACEiE.] 200 [Pottia. 



8. POTTIA CiESPITOSA {Bruch.) C. Muell. 



Autoicous ; leaves patent, oblong, mucronate, with plane margins, 

 perich. bracts 3, sheathing. Caps, ovate, not tapering at base; lid 

 rostrate, cal. smooth. (T. XXIX, B.) 



Syn. — Weissia ccespitosa Bruch MSS. Brid. Bry. univ. i, 808 (1827). 



Anacalypta ccBSp. Fuernr. in Flora xii, P. II, Erganz. 25 (1829). Nees Hornsch. Bry. 

 germ, ii, P. II, 146, t. 37, f. 4 (1831). Br. Schimp. Bry. eur. fasc. 18 — 20, 3, t. 2 (1843). 

 Rabenh. Deutsch. kr. fl. ii, s. 3, 98 (1848). WiLs. Bry. br. 98, t. 41 (1855). Schimp. 

 Synops. 127 (i860). Berk. Handb. br. m. 268 (1863). De Not. Epil. bri. ital. 581 

 (i86g). HoBK. Syn. br. m. 57 (1873). 



Dcrmatodon ccesp. HuEBEN. muse. germ, iii (1833). 



Desmatodon ccesp. De Not. Syll. 203 (1838). 



Pottia ccesp. C. MuELL. Synops. i, 547 {1849). Linde. de Tort. 219 (1864). Mitt. Journ. 

 Bot. 1871, p. 4. HusN. Mous. nord-ouest. 67 (1873). Schimp. Synops. 2 ed. 157 (1876). 



Autoicous ; densely caespitulose, simple or branched, yellow-green. 

 Leaves patent, lower ovato-lanc. upper oblong-lanc. concave with plane 

 margins, papillose at back ; nerve excurrent in a short mucro ; cells 

 minute, inci^assate, rectangular at base, rotundo-quadrate above- 

 Perich. bracts 3, erect and sheathing, oblong-acuminate ; seta straw- 

 coloured ; caps, erect, ovate, often rather asymmetric, not tapering at 

 base, orange-brown ; ann. of one row of cells ; lid obliquely rostellate 

 red ; cal. smooth ; teeth of per. on a narrow basal membrane, entire or 

 cleft, irregular, pale. Male infl. gemmiform, bracts ovato-acuminate, 

 nerved. 



Hab. — Chalk hills, very rare. Fr. 3 — 4. 



Woolsonbnry hill, Sussex (Mitten 1846) ! ! Near Arundel {Davies 1857) ! ! 



9. POTTIA STARKEI [Hedw.) C. Muell. 



Paroicous ; caespitose. Leaves ovato-lanc. nerve excurrent, margin 

 reflexed. Capsule oval, small, calyptra scabrous, lid convexo-conic, 

 obtuse, peristome short, more or less imperfect. (T. XXIX, C.) 



Syn. — Weissia Siarkeana Hedw. Stirp. cr. iii, 83, t. 34 B. (1792), Sp. muse. 65. Brid. 

 Muse. ree. II, P. I, 77 (1798), Sp. muse. I, 117 (1806), Mant. 44 (i8ig), Bry. univ. 1,553 

 (1826). RoEHL. Moosg. deutseh. 157 (1800), Deutseh. fl. iii, 50 (1813), Ann. Wett. ges. 

 iii, 108. Schwaegr. Suppl. I, P. I, 68 (1811). Hook. Tayl. Muse. brit. 44, t. 14 

 (1818). FuNCK Moost. 13, t. 9 (1821). Gray Nat. arr. br. pi. i, 729 (1821). Hook 

 Br. fl. ii, 20 (1833). Mack. Fl. hib. P. z, 14 (1836). 



Bryum Stark. Hoffm. Deutseh. fl. ii, 32 (1795). P. Beav. Prodr. 49 (1805). 



Grimmia Stark. Roth Fl. germ, iii, P. I, 146 (1800). Sm. Fl. brit. 1186 (1804), Eng. 



Bot. t. 1490. Wee. Mohr Bot. Tasch. 137 (1807). Schkuhr Deutsch. kr. gew. P. II, 



57, t. 24 (1810). VoiT Muse, herb. 32 (1812). 



Bryum mimitum Dicks. Crypt, fase. IV, 7, t. 10, f. 17 (1801). 



Anacalypta Stark. Fuernr. in Flora xii, P. II, Erganz. 25 (1829). Nees Hornsch. 

 Bry. germ, ii, P. II, 138, t. 36, f. 2 (1831). Br. Schimp. Bry. eur. fase. 18-20, p. 2, t. i 

 (1843). Rabenh. Deutseh. kr. fl. ii, s. 3, 98 (1848). Wils. Bry. br. 97, t. 14 (1855). 

 Schimp. Synops. 126 (i860). Berk. Handb. br. m. 268 {1863). De Not. Epil. bri. 

 ital. 582 (1869). HoBK. Syn. br. m. 57 (1873). 



Dcrmatodon Stark. Hueben. Muse. germ. 109 (1833). 



Desmatodon Stark. De Not. Syll. 205 (1838). 



