56 BRITISH HEPATIC^. 



Eadula (Plagiochild) asplenioides, Dumort. Syll. Jung. p. 42, n. 28 (1831). 



Plagiochila asplenioides, Dumort. Rev. Junw. p. 14 (1835) ; Mont, et Nees in 

 Ann. des So. Nat. Janv. 1836, p. 52. et Leberm. Eur. iii. p. 518 (1838).; Lindenb. Sp. 

 Hep. Flag. p. 110, t. 23 (183"9) ; G. L. N. Syn. Hep. p. 49, n. 67 ; Rabenh. Kryp. FL 

 p. 341 (1863) ; Cogn. Hep. Belg. p. 22 ; Bum. Hep. Eur. p. 43 (1874) ; Lind. in Hart. 

 Skand. Fl. x. ii. p. 130 (1871) ; Jenson, Hep. Dan. p. 149, n. 67 (1866) ; G. et E. Hep. 

 Eur. Exs. n. 20, 271, et 320, cum icone; Del. et Grav. Hep. Ard. n. 13. 



Lichenastrum asplenii facie pinnis laxioribus (et confertioribus).^ — Dill. Hist. 

 Muse. p. 482, t. 69, f. 5 et 6. 



Muscus trichomania facie, foliis utrinciue splendentibus rotundis. — Hist. Ox. iii. 

 p. 627, n. 41. 



a major. Shoots 2" to 4" by 3'", sparingly branched, leaves 

 loosely imbricated, nearly horizontal, less rigid and convex, obovate- 

 trapezoid, more or less closely denticulate ; colesule obconic. 



Eng. Bot. t. 1788 j Hook. Jung. t. xiii. ; Lindenb. Flag. p. Ill, t. 23, f. 1, 7. 



3 minor. Shoots ^" to 1^", by ■^" to Y > summit decurved, 

 densely csespitose, leaves erecto-patent, approximate, sub-secund, 

 roundish ; margins strongly reflexed, ciliate-denticulate, entire, or 

 emarginate ; colesule oblong, mouth less dilatate. 



3* humilis, scarcely -^". Shoots attenuate, leaves ovate, entire, 

 obtuse or notched. 



Lindenb. Flag. p. Ill, y minor, S hwmUis, et e heUrophyUa, Fl. xxiii. f. 7 to 15. 

 Flag. DUlenii, Tayl. in Hook. Jour, of Bot. p. 260 (1846) ; Dumort. Hep. Eur. 

 p. 43. 



S devexa. Shoots compressed, sub-circinnate, \^' by 2'", 2 or 3 

 times innovant-furcate ; leaves secund, roundish, ciliate-dentate, 

 closely imbricated, erect ; dorsal margin straight, strongly recurved, 

 ventral projecting backward, so as to form a crest with the opposite 

 leaves; colesule short, oblong, scarcely exceeding the involucral 

 leaves, and like them densely ciliate at the apex. 



Hab. Frequent about the roots of trees in shady woods and plantations. Capsules 

 rare. Early summer. Snowdon, Dillenius ! Bolton woods, (J and ?, May 1860! 

 Auchindenny woods, 1830, Dr. Gremlle I Strachan, Feb. 1874, T. Sim 1 ji minor on 

 rocks in subalpine districts, such as the scar-limestone of Craven, and oolitic moor- 

 lands of Yorkshire ; mostly barren, fi* humilis, Craigendaroch, Aberdeen, T. Sim, 

 1871 ! 2 deveoca, Dingle Bay, Ireland, July, 1861 ! 



Fronds (f. 12, 1) either straggling among mosses, or forming 

 dense erect tufts. 



JPrimar'ff shoots leafless, creeping, entangled, naked, or bearing 

 near the apex minute scale-like bracts, radiculose, about the thick- 

 ness of black thread, dark brown or nearly black, polished, ai^d 

 composed of elongated pleurenchymatous cells. 



Mootlets confined to the rhizomatous shoots, white, capillary. 



Secondary shoots (f. 12, 1) less rigid, and of a paler brown, as- 



