FissiDENTACE^.J 67 [Fisstdens. 



I. FISSIDENS EXILIS Hedw. 



Autoicous ; very small ; leaves 3 — 4 pairs, lanceolate-oblong, not 

 bordered, serrulate at margin; capsule erect, elliptic, with a narrow 

 annulus, lid conico-rostellate. (T. X, A.) 



Syn. — Hypmtm minutmn L. MSS. in herb. 



Bryum viridulum Dicks. Cr. fasc. I, 3, t. i, f. 5 (1785). 



Fisstdens exilis Hedw. Sp. muse. 152, t. 38, f. 7 — g, excl. syn. L. (1801). Schultz FI. 

 Starg. 2gi (1806). Brid. p.p. Sp. muse, ii, 163 (1812) ; Mant. 187 (1819) ; Bry. univ. 

 ii, 638 {1827). ScHWAEGR. Suppl. I, P. II, 4 (1816) p.p. WiLS. Bry. Brit, 302, t. 53 

 (1855). ScHiMP. Syn. muse. 103 (i860), et 2 ed. iii (1876). Berk. Handb. Br. ra. 160 

 (1863). HoBK. Syn. Br. m. 135 (1873). HusN. Mouss. nord-ouest 61 (1873). 



Dicranum viridulum Sm. Eng. Bot. t. 1368 (non descr. nee Swartz). 



Dicr. bryoides /3. minus Turn. muse. bib. 53 (1804). 



Hyp. trifoliatum Don MSS. in herb. Turn. 



Fiss. bryoides var. exilis Rohl. Deutseh. Fl. iii. 76 (1813). 



Skitophyllum exile La Pyl. in Desv. Journ. Bot. 1813, 34, t. 38, f. 1. 



Fiss. Bloxami WiLS. in Lend. Journ. Bot. 1845, p. 195, t. g. C. Muell. Syn. muse, i, 66 

 (1849). Br. Schimp. Bry. Eur. i, Mon. Suppl. i, ii. 8 (1850). Milde Bry. Siles. 

 80 (i86g). 



Autoicous ; minute, deep green, closely gregarious. Stem i line 

 long, inclined; leaves 3 — ^4-jugous, lower minute, upper obliquely 

 lanceolate-oblong, acute, nerved to apex, not bordered, the margin 

 crenulate or serrulate, vag. lam. J length of leaf, inf. lam. linear-lanceo- 

 late, ending at middle of vag. lam., areolation rather lax. Capsule 

 erect, on a red seta 2 lines long, elliptic, with a short neck, brown with 

 a red mouth ; calyptra conic, cucullate, lid red, long as capsule, conico- 

 rostellate ; annulus pale, of two rows of cells, not unrolling ; peristome 

 red, geniculate, spores olive-brown. 



Male infl. very minute, gemmiform, radical, or attached to the 

 root tomentum, bracts ovate, acute, antheridia very small, without 

 paraphyses. 



Hab. — Shady banks by ditches and in woods. Fr. i — 2. 



Boxbill and Enfield Chase {Dickson). Burnside and near R. Sherbet, Forfar {Don, 1802) ! 

 Budd's Clough, Cheshire and Warrington {Wilson, 1834). Orton and Gopsal Woods, 

 Twycross {Bloxam, 1844) ! I Hurstpierpoint {Mitten, 1847) ' Kirkham, Yorks. {Spruce). 

 Near Keston Common, Kent {Braithwaite, 1865) ! ! Bowdon, Cotteral wood, Mottram 

 and Ashley, Cheshire {Hunt) 1 ! Todmorden {Nowell, 1863) ! ! Prestwich {Hunt, 

 i86g) I Bagley wood, Oxford (Boswell, 1861) I Sellack, Hereford {Rev. A. Ley). 

 Holwell, Dorset {Rev. H. Wood) ! ! Kelvedon Hall woods, Essex {Varenne, 1880) ! ! 

 Luscomtie wood, Teignmouth {Miss Jelly). Near Bearley and Knowle, Warwick 

 {Bagnall) ! I Levens, Westmoreland (Barnes) ! 



Readily known by its crenulate non-margined leaves, and probably more 

 common than supposed, its small size and early appearance causing it to be 

 overlooked. It was constantly confounded with F. viridulus by the older 

 bryologists. 



