372 HEPATIC a:. 



oi" the other round-leaved JangermanicB, excspt Nardla comprcssa, 

 which has them also. This is a larger species ; stem with large 

 cortical cells, leaves broader and more closely compressed. 



Nardia hyalina and N. obovata have reddish or purplish root 

 lets, which at once distinguishes them. 



Description of Plate CLXI. — Fig. 1. Plants natural size. 

 2. Sterile stem x 24 (Cader Idris, W. H. P.). 3. Portion of 

 fertile stem x 24 (Dalarne, S. 0. L.), 4, 5. Leaves with stipules 

 X 24 (Cader Idris, W. H. P.). 6-10. Leaves x 24 (ditto). 

 11. Portion of leaf x 290 (ditto). 12, 13. Stipules x 85 (ditto). 

 14. Stipule X 85 (Sweden, S. 0. L.). 15, 16. Bracts x 24 

 \Sweden). 17. Bracteole x 24 (ditto). 18. Pistillidium x 85 

 (ditto). 19, 20. Perigonial bracts x 24 (Sweden, S. 0. L.). 21. 

 Antheridia x 85 (ditto). 



5. Nardia silvrettse (Goffsc/te). 



Syn. Jungermania Silvrettce, Gottsche in G. R. Hep. Eur. Ex. n. 470 (1869). 

 Sarcoscyphus anomalus, Jack in lit. Dr. Gottsche, G. R. Hep. Eur. Ex. n. 470 



(1869). 

 Alarsupella (?) silvrettce, Dum. Hep. Eur. p. 128 (1874). 

 Alicularia minor, Limpr. p.p. in Cohn Krypt. Fl. Schles. p. 251-433 (1876). 

 Nardia hanrnatosticta, var. suberecta, Lindb. Muse. Scand. p. 8, n. 153 (1879). 

 Nardia geoscypha, var. suherecta, Mass. Epat. delle Alp. Penn. in Nuov. Giorn. 



Bot. Ital. vol. xiv. tab. xiii. 

 Exsicc. Theden. Muse. Suec. Ex. n. 136 (as Jung, scalaris); G. R. Hep. Eur. 



dec. 42 et 44, n. 416 (as Alicidaria scalaris, var. minor); dec. 45 et 47, 



n. 470 (as Jung. Silvrettce) ; Husn. Hep. Gall. n. 101 (as Alicidaria 



Paroicous, caespitose, small, light to dark or brownish green in 

 colour. Stems simple or furcate, with often single slender inno- 

 vations arising from below the involucre, suberect, fleshy, some- 

 what fragile, on a transverse section oval, frontally compressed, 

 cortical la3^er of cells smaller, darker, about 30, inner large, 

 hyaline, 12 cells x 9 or 10 ; densely radiculose, rootlets white or 

 purplish. Leaves alternate, subdistichous, obliquely inserted, 

 patent, horizontal or suberect, lower smaller, distant, upper larger 



