FISSIDENTACE^E.] 73 [Fissidens. 



6. FISSIDENS ORRII (Lindb.) 



Autoicous ; very small. Leaves narrow, linear, very acute, with a 

 thickened border and excurrent nerve. Capsule minute, obovate, cer- 

 nuous, lid conico-rostrate. (T. X, F.) 



SvH.Schistophyllum Orrli LINDB. in Revue bryolog 1880, p. 97. 



Autoicous (rhizautoicous) ; very small, pale or yellowish, csespitose, 

 innovating from brown rhizomatous tomentum. Leaves of sterile plant 

 multijugous, rigid, straight, patent, linear-lanceolate, very acute, with a 

 thickened yellow border confluent in the apex with the excurrent nerve ; 

 vag. lam. f | length of leaf, infer, lam. gradually narrowed to base and 

 slightly decurrent ; cells incrassate, oval and angular, smooth, pellucid. 

 Leaves of fertile plant about 8-jugous, smaller. Seta slender, straight, 

 yellow ; capsule minute, pale, pachydermous, obovate, inclined ; peris- 

 tome brown-purple, legs of teeth very slender ; lid large, pale, 

 conico-rostrate, calyptra small, conical. Male infl. very minute, gem- 

 miform, cohering to base of female stem, bracts sheathing, emarginate 

 at apex, with a thick excurrent nerve, antheridia 3 6, without 

 paraphyses. 



HAB. On stones in the Tolka river and at an old quarry on its north bank nearFinglas bridge, 

 Glasnevin Botanic Garden, Dublin (D. Orr 1854). 



The close vicinity of a Botanic garden naturally casts some shade of 

 doubt on the claims of this pretty little moss to be considered indigenous, 

 as spores may have been introduced with the soil attached to foreign plants. 

 Mr. Orr gathered and distributed it as F. viridulus, and the drawing is made 

 from the original plant kindly lent by Prof. Lindberg. 



7. FISSIDENS OSMUNDOIDES (Swartz) Hedw. 



Dioicous ; stems dichotomous, leaves crowded, scalpelliform, apicu- 

 late, margin minutely crenulate, not bordered, nerve vanishing ; capsule 

 erect, oval, calyptra mitriform, lid rostrate. (T. XI, A.) 



SYN. Dicranum osmundoides SWARTZ in Act. Holm. 1795, p. 240. TURN. Muse. Hib. 55 



(1804). SMITH Fl. Brit, iii, 1233 (1804) ; Eng. Bot. t. 1662. 



Dicr. bryoides SWARTZ Muse. Suec. 86, t. 2, f. 4 (1799). WL:B. MOHR Bot. Tasch. 163 

 (1807). SCHKUHR Deutsch. Kr. Gew. P. II, 82, t. 37 (1810). Var {3. elongatiim HOOK. 

 TAYL. Muse. Brit. 



Hypnum asplcnioidcs DICKS. Cr. fasc. 2, p. 10, t. 5, f. 5 (1790), excl. Syn. Swartzii. WITH. 

 Bot. arr. Br. Veg. 3 ed. 843 (1796). HULL Br. Fl. P. 2, 268 (1799). 



Fiss. osmundoides HEDW. Sp. muse. 153, t. 40, f. 7 ii (1801). P. BEAUV. Prodr. 57 

 (1805). SCHULTZ Fl. starg. 292 (1806). BRID. Sp. muse, i, 168 (1806); Mant. muse 

 188 (1819) ; Bry. univ. ii, 689 (1827). SCHWAEGR. suppl. I, P. II, 7 (1816). MART. Fl 

 cr. Erl. 109 (1817). FUNCK Moost. 33, t. 22, n. 4 (1821). HUEBEN. Muse. germ. 22 

 (1833). HARTM. Skand. Fl. BR. SCHIMP. Br. eur. i, Mon. 8, t. 3 (1843) ; Syn. muse 

 106 (1860) ; 2 ed. n6 (1876). FIEDL. Syn. Laubm. Meckl. 130 (1844). RABENH 

 Deutsch. Kr. Fl. ii, P. 3, 305 (1848). C. MUELL. Syn. muse, i, 60 (1849). WILS. Bry 

 Brit. 305, t. 16 (1855). BERK. Handb. Br. m. 158 (1863). MILDE Bry. Siles. 82 (1869) 

 DE NOT. Epil. Bri. Ital. 481 (1869). HOBK. Syn. Br. m. 137 (1873). 



