Grimmiace.e.1 62 [Zygodon. 



This prettj" moss flourishes best in mild moist localities, and with us 

 attains its greatest perfection in Devonshire and at Killarney, ■where the fruit 

 is abundant. 



Var. /8 rupestris Lindb. 



Plants more robust, dark green ; leaves twisted when dry, longer, 

 narrower, apiculate, the nerve stronger, reaching nearly to point. Caps, pale 

 brown, subcylindric, tapering at base, not contracted at mouth. 



Syx. — Zygodon rupestris Li.xdb. M. S. 1861 ; Muse, scand. 29 (1879). Milde Bry. siles. i6.^ 

 (1869). 



Zygodon viridissimns p, rupestris Hartm. Handb. Skand. fl. Mossor, 9 ed. 52 (1864). 



Zyg. viridissimns B. saxicola Molendo M. S. 1862. Rabenh. Bryoth. eur. n. 626 (1863). 

 LoRENTZ Moos-studien 95 {1864). 



Hab. — Rocks and walls ; rare. 



Old wall near Oxford (Bosicell 1884) ! ! Wall at Barmouth with Z. Stirtoni (Holt 1882) ! ! 

 Limestone rocks at Castleton, Derby, and Rushen Abbey, I. of Man, with Z. Stirtoni 

 {Holt 1884) ! ! On sycamore, Derry (J. H. Davies 1885) I I Rocks at Pentreath, 

 Anglesey, c. fr. (Rogers 1887) ! Malham (Holt 1885) ! Miller's dale (Holt 1884) ' ! 



A stouter plant than the type and of a dull dark green colour, almost 

 intermediate between Z. Stirtoni and Z. viridissimtts . 



3. ZYGODON CONOIDEUS {Dicks.) Hook. Tayl. 



Dioicous ; in small lax slightly branched tufts. Leaves less dense, 

 patent, broadly lane, flat, keeled ; nerve vanishing. Caps, oval- . 

 pyriform, lid subulate, teeth i6, pale yellow, short, obtuse ; endostome 

 of 8 fugacious cilia. (T. LIV, D.) 



S>Y^.—Bryum comidcnm Dicks. Ct. Fasc. IV, t. 11, f. 2 (1801). Turn, Muse. hib. 112 (1804). 

 Mnimn conoideum Sm. Fl. brit. 1345 (1804); Eng. Bot. t. 1239. 

 Zygodon conoideus HooK. Tayl. Muse. br. 71, t. 21 excl. syn. (1818). Gray Nat. arr. Br. 



pi. i, 74+ (1821). Hook. Grev. in Brewst. Ed. J. sc. i, 132 (1824), ut Var. minor. 



Hook. Br. fl. ii, 52 (1833). Mack. Fl. hib. P. 2, 29 (1836). Wils. Bry. br. 193, t. 21 



(1855). ScHiMP. Synops. 250 (i860), 2 ed. 296. Berk. Handb. br. m. 217, t. 20 (1863). 



BouLAV Fl. cr. de I'Est 350 {1872). Hobk. Syn. br. m. 98 (1873). HusN. Mouss. no:d- 



ouest 100 (1873), Muse. gall. 148, t. 42 (1887). 



Zygodon Brebissoni Br. Sch. Bry. eur. Fasc. 4, p. 8, t. 2 (1839). C. Muell. Synops. i, 

 673 (1849)- 



Dioicous; in small la.x light yellow-green tufts. Stems nearly 

 simple or sparingly branched, slender, beset with ferruginous radicles 

 at base. Leaves less dense, patent, curving upward, imbricated when 

 dry, lineal-Ianc, acuminate, flat and slightly keeled, more papillose, 

 nerve narrow, vanishing below apex, more opaque ; cells larger and more 

 incrassate. Caps, on a longish slender pale seta, oval, tapering 

 downwards into a neck of equal length, narrower, striate toward mouth, 

 when dry and empty, leptodermous, pale fuscous ; lid with a subulate 

 beak ; peristome of 8 bigeminate, pale yellowish teeth, reflexed when 



