BUITISH HEPATIC^. 87 



Radvla {Scapama) curta, Dumort. Syll. Jung. p. 40. 



PlagiochUa curta, M. et N. in Leberm. Eur. iii. p. 525. 



Scwpania cwrta, Dumort. Rev. Jung. p. 14 (1836) ; G. L. N. Synop. Hep. p. 69 

 (1844); Lindb. in Hartm. Skand. Fl. 10 ed. p. 132; Gottsche, in Flor. Danica, 

 t. 2690, f. 1 ; Cogn. Hep. Belg. p. 22 ; G. & R. Hep. Eur. Exs. nn. 93, 195, 382, 

 and 395. 



ft spinulosa, shoots longer, erect, recurved at the apex ; leaves yellowish-green, 

 more closely imbricated ; lobes ovate, acute, distinctly spinose-dentate ; inferior lobe 

 convex, slightly recurved ; lobule obliquely ascending, half as large. 



Jung, cwrta, a 3, spinulosa, Nees ab E. 1. c. i. p. 215 ; G. & E. Hep. Eur. n. 196. 



y rosacea, erecto-procumbent, claret-coloured, innovant-furcate ; leaves approx- 

 imate, narrower ; inferior lobe cultriform, shortly cuspidate, plane, or slightly concave; 

 lobule about a third as large, obliquely ovate to cuneiform, acute, ascending ; margins 

 entire, repand or minutely denticulate. 



JuMg. rosacea, Corda, in Sturm. Flor. Germ. ii. 22, 23, p. 96, t. 29; K ab E. Leber. 

 Eur. p. 211. 



Scapcmia rosacea, Dumort. Rev. Jung. p. 14 ; G. L. N. Syn. Hep. p. 71. 



Jung, curta, ft procuinhens, Lindenb. Hep. Eur. p. 56. 



Hab. — Frequent on banks, shady places in woods, walls, &c., often associated with 

 J. albicans, Dicranella varia, D. heteromella, &o. 



Trossachs, J. Cruikshank I Snowdon, G. E. Hunt ! Ben-Muic-Dhi, A. 0. Black I 

 Near Stirling, fr. May 1831, Dr. Greville I Ardingley rocks, G. Demies. Sussex, 

 W. Mitten ! Forfar Burn, 1862, A. Croall ! Yeadon, Yorkshire ; Barton Moss. 



ft, Esholt woods, Yorkshire, fr. Oct. 26, 1860. Glenbush, A. Croall! 



y Donne, Feb. 1867, A. McKinlay ! 



Plants inconspicuous, growing in diffuse loosely-tufted patches 

 of a pale-green or yellowish-green colour. 



Stems rather stout, herbaceous, creeping and naked at the base, 

 afterwards ascending or erect, at first simple, but after attaining 

 their full development producing innovations from one or both 

 sides of the terminal shoots. Under favourable conditions, from 

 repeated prolification, the stems become fasciculate, and attain a 

 height of an inch or more, whereas the annual shoots seldom exceed 

 two lines, or a quarter of an inch. 



"Rootlets long, white, fasciculate, confined to the lower portion 

 of the shoots and stolons. 



Shoots (f. 23, 2, 3) erect, complanate, -^" to xr" in diameter, 

 increasing in breadth towards the apex, which is generally recurved; 

 innovations at first more slender, but at length resembling in all 

 respects the ordinary shoots. 



Leaves (f. 23, 3) approximate, distichous, alternate, semi-amplex- 

 icaul, vertically patent, smaller and more distant near the base of 

 the stems, more crowded and gradually increasing in size towards 

 the summit, carinate-complanate, divided for about half their length 

 into two unequal lobes. 



Inferior lobe (f. 33, 4) -^" to -/q" in length, ovate, roundish- 

 ovate, or obovate from a contracted, slightly decurrent base, 

 abruptly pointed or cuspidate, sometimes obtusate or apiculate; 

 ventral margin a little recurved, but in some specimens plane 



