FUNARIACE^.] 127 [Physcomitrella. 



4. PHYSCOMITRELLA Br. Sch. 



Bry. eur. Fasc. 42 (1849). 



Plants minute, without protonema. Leaves rosulate, thin nerved, 

 with lax 5 6 angled cells. Caps, on a short pedicel, cleistocarpous, 

 immersed or exserted, globose, minutely apiculate ; calyptra conico- 

 campanulate. Der. diminutive of Physcomitrium. 



PHYSCOMITRELLA PATENS (Hedw.) Br. Sch. 



The only species. (T. LXIV, D.) 



SYN. Phascum patens HEDW. Muse. fr. i, 28, t. 10 (1787), Sp. muse. 20. HOFFM. Deutsch. 

 fl. ii, 19 (1796). BRID. Muse. rec. II, P. I, 14, t. i, f. 2 (1798), Sp. muse. I, 5 (1806), 

 Mant. 7 (1819). Bry. univ. i, 33 (1826). ROEHL. Moosg. deutsch. 22 (1800), Deutsch. 

 fl. iii, 34 (1813), Ann. Wett. ges. i, 190. ROTH Fl. germ, iii, P. I, 112 (1800). DICKS. 

 Crypt. Fasc. iv, 2 (1801). SM. Fl. br. 1150 (1804), Eng. Bot. t. 1279. TURN. Muse, 

 hib. 2 (1804). P. BEAUV. Prodr. 82 (1805). SCHULTZ Fl. starg. 272 (1806). WEB. 

 MOHR Bot. Tasch. 70 (1807). SCHKUHR Deutsch. kr. gew. P. II, u, t. 4 (1810). 



SCHWAEG Suppl. I, P. I, 7 (1811). STURM Deutsch. fl. 2, 12 (1811). LA PYL. Journ. 



, t. 19. HOOK. TAYL. Muse. br. 7, t. 5 ; 

 (1821). GRAY Nat. arr. br. pi. i, 711 (1821). NEES HORNSCH. Bry. germ. I, 49, t. 5 



Bot. 1813, p. 287, t. 19. HOOK. TAYL. Muse. br. 7, t. 5 (1818). FUNCK Moost. 3 t. i 



(1823). HOOK. br. fl. ii, 3 (1833). HUEBEN. Muse. germ. 9 (1833). BR. SCH. Bry. eur. 



Fasc. i, t. 3 (1836). DE NOT. Syllab. 307 (1838). WILS. Bry. brit. 34, t. 5 (1855). 



HOBK. Syn. 29 (1873). HUSN. Mouss. nord-ouest 33 (1873). 

 Ephemerum patens HAMPE in Linnaea 1832. C. MUELL. in Bot. Zeit. 1847, P- IO1 



Synops. i, 53 (1848). RABENH. Deutsch. kr. fl. ii, S. 3, 85 (1848). 

 Physcomitrella patens SCHIMP. Bry. eur. Fasc. 42, t. 2 (1849), Synops. 3 (1860), 2 ed. 8. 



BERK. Handb. br. m. 303, t. 24, f. 9 (1863). MILDE Bry. siles. 191 (1869). DE NOT. 



Epil. 739 (1869). JAEGER Ber. St. Gall, gesells. 103 (1869). JURATZ. Laubm. oester.- 



ung. 236 (1882). HOBK. Syn. 2 ed. 144 (1884). LESQ. JAMES Moss. N. Amer-39 (1884). 



HUSN. Muse. gall. 210, t. 57 (1888). 

 Aphanorrhegma patens LINDB. Oefver. K. vet. akad. Foerh. 1864, p 592. 



Paroicous and synoicous; very small, gregarious, pale green. 

 Lower leaves scattered lanceolate recurved, upper larger, crowded, 

 rosulate, spreading or recurved, obovate-oblong and spathulate, some- 

 what acuminate, serrulate in the upper half, nerve thin vanishing 

 below apex ; cells lax, rectangular and elongate-hexagonal. Calyptra 

 conico-campanulate. Caps, usually immersed, cleistocarpous, fusees- 

 cent, globose apiculate, leptodermous; spores large, roughish. Male 

 infl. 6 8 antheridia enclosed by a minute nerveless bract, or sometimes 

 mixed with the archegonia. 

 HAB. Damp clay fields and mud of dried-up pools. Fr. 9. 



Stockton forest, York (Spruce) ! Sussex (Mitten). Crewe (Wilson 1863) ! ! Ashley mill 

 and Mere Mere (Hunt 1869) ! ! Belfast. Devon. 



Var. p. Lucasii (Nees. Hsch.) Schimp. 



Stem very short. Leaves more crowded, shorter, broader, more erect. 



