218 HEPATICJE. 



and habit, I see no character by which it can be separated from 

 the type. 



Dimensions. — Stems \ to \\ inch long, '3 mm. diam., with 

 leaves 2' mm. to 3* mm. wide, leaves, antical lobe 7 mm. x "5 mm., 

 *9 mm. X '7 mm., I'l mm. x '8 mm., postical 1' mm. x -7 mm., 

 1*7 mm. X '9 mm., 1-7 mm. x 1* mm., cells "02 mm., perianth 

 2*2 mm. long x 1'7 mm. wide at the month, gemmae -03 mm. x 

 •015 mm. 



Hab. — On shady rocks and walls, more rarely base of trees, 

 generally in subalpine districts. Moderately common. 



1. Penzance, W. Curnow. 2. Eridge Rocks, Dr. Spn/ce. 

 3, 7. Common in Merionethshire and Carnarvonshire, W. H. P. 

 10. Ilkley, Dr. Carrn)(jton, G. Stabler, G. Webster. Malham Moor, 

 Dr. Carrington. 11, 12. Frequent in Westmorland and Cumber- 

 land, G. StaljJer, Dr. Carrington, W. H. P. 13. Frequent on the 

 hills in Kirkcudbrightshire and Dumfriesshire, /. Mc Andrew. 14, 

 15, 16. Very common, Moidart, West Inverness, 8. M. Macvicar. 



I. Very common and widely distributed in Ireland, Dr. D. 

 Moore. Killarney, McArdle §• Lett. Co. Cavan, D. McArdle. 



Found on the Continent, Teneriffe. 



Obs. — Distinguished at once from any of the forms of Scapania 

 undidata by its brownish-olive colour, from Seapania nemorosa by 

 the coarser teeth of the leaves, and from Seapania cequiloba and 

 Seapania aqjera by the smooth epidermis. 



The frequently reflexed antical lobe is also a good character to 

 distinguish it from other species ; this feature is somewhat incon- 

 stant, but is usually found on some portion of the stem. 



Linnaeus founded his Jtmg. resnpinata on the plant described 

 and figured by Dillenius in his Hist. Muse. p. 491, t. 71, f. 19, 

 which, according to Lindberg, comprises two species, one of which 

 he named Martlnellia graeilis. This, however, so agrees with the 

 description " acutissime crenatos margined " as well as with the 

 figure h, that I follow Dr. Carrington in considering it the true 

 Jung, resupinata. Seapania resnpinata, recorded from several stations 

 in Staffordshire by Mr. J. E. Bagnall (" Journ. of Bot.," March 

 1896), all refer to Seapania aspera, Mlill. et B. 



