FuNARiACE^.J 127 [Physcomitrdla. 



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 iatens Hedw. Muse. fr. i, 28, t. 10 (1787), Sp. muse. 20. Hoffm. Deutseh. 

 fl. 11, 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. deutseh. 22 (1800), Deutseh. 

 fl. Ill, 34 (1813), Ann. Wett. ges. i, igo. Roth Fl. germ, iii, P. I, 112 (i8oo). Dicks. 

 Crypt. Fasc. iv, 2 (1801). Sm. Fl. br. 1150 (1804), Eng. Hot. t. 1279. Turn. Muse, 

 hib. 2 (1804). P. Beauv. Prodr. 82 (1805). Schultz Fl. starg. 272 (i8o6). Vi^EB. 

 MoHR Bot. Tasch. 70 (1807). Schkuhr Deutseh. kr. gew. P. II, 11, t. 4 (1810). 

 ScHWAEG Suppl. I, P. I, 7 (i8ii). Sturm Deutseh. fl. 2, 12 (i8u). La Pyl. Journ. 

 Bot. 1813, p. 287, t. ig. Hook. Tayl. Muse. br. 7, t. s (1818). Funck Moost. 3 t. i 

 fi82i). Gray Nat. arr. br. pi. i, 711 (1821). Nees Hornsch. Bry. germ. I, 49, t. 5 

 (1823). Hook. br. fl. ii, 3 (1833).. Hueben. Muse. germ. 9 (1833). Br. Sch. Bry. eur. 

 Fase. 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 Linn^a 1832. C. Muell. in Bot. Zeit. 1847, P- ^°^ '< 

 Synops. i, 53 (1848). Raeenh. Deutseh. kr. fl. ii, S. 3, 85 {1848). 



Physcomitrella patens Schimp. Bry. eur. Fase. 42, t. 2 (1849), Synops. 3 (i860), 2 ed. 8. 

 Berk. Handb. br. m. 303, t. 24, f. g (1863). Milde Bry. siles. igi (i86g). De Not. 

 Epil. 73g (i86g). Jaeger Ber. St. Gall, gesells. 103 (i86g). Juratz. Laubm. oester.- 

 ung. 236 (1882). HoBK. Syn. 2 ed. 144 (1884). Lesq. James Moss. N. Amer. 3g (1884). 

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



Aphanoryhegma patens Lindb. Oefver, K. vet. akad. Foerh. 1864, p 5g2. 



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 elongato-hexagonal. Calyptra 

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

 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 (S/y«ce) ! Sussex (A/««««). Crewe (W«7so» 1863) ! ! Ashley mill 

 and Mere Mere (Hunt 1869) ! 1 Belfast. Devon. 



Var. /8. Lucasii {Nees.. Hsch.) Schimp. 



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



