66 ON TWO NEW BRITISH HEPATIC.E. 



of that species, Avhicli are frequently plane, and narrowed at the base, 

 and not at all sheathing. At first I felt some doubt as to the identity 

 of our species with Lindenberg's J. sphacelata, misled by specimens 

 distributed under that name in Kabenhorst's Hepat. Eur. Ex. n. 137, 

 from Dr. Hepp, but which really belong to Nardia Fimckii. Through 

 the kindness of my friend Professor Lindberg, I have received recently 

 a portion of the original tuft collected by Gieseke, Avhich agrees in all 

 respects with the Loch Kandor plant. The perigonial leaves of N. spha- 

 celata are more erect and gibbous at the base, with shorter inflexed 

 lobes. I have not yet met with fertile individuals, but in one or 

 two cases the leaves at the base of innovant shoots differ from the 

 rest in their larger size, and are divided into three Ungulate lobes, and 

 maj'^ have pertained to abortive involucres. 



I have ventured to reinstate Gray's genus Nardia (' Arrangement 

 of Britisb Plants,' 1821) to include Sarcoscyphus and Alicnlaria, which 

 only differ as the bidentate Juugermannlce do from the entire-leaved 

 ones. I have only altered the masculine terminology. 



2. Adelanthus Carringtoni, Balfour ; primary stems rhizomatous ; 

 shoots erect, sparingly branched, circinate at the apex ; leaves secuud, 

 deflexed, round or reniform, approximate, very convex, appressed, 

 polished ; anterior margin narrow, decurrent, for a distance equal to 

 half the breadth of the leaf; posterior margin abruptly rounded ; 

 areolation"guttulate." — Jmujermannia compressa, Hook., Dr. Greville's 

 Herb. Alicularla occlusa, H. and G., Dr. Stirton in Sched. 



This fine species was first recognized as distinct by Dr. Stirton, who 

 collected it on Ben Lawers, July, 1866. It appears to be not unfre- 

 quent in the Scotch highlands. I have received specimens collected 

 from rocks above Loch Avon, August, 1830, by the late Dr. Greville, 

 who mistook it for Nardia compressa. Mr. A. Crook found it in the 

 same locality July, 1856; and Mr. C. Howie met with it at Loch 

 Maru, Ross-shire, July, 1867. It prefers boggy places, either grow- 

 ing alone or forming loose tufts with other species,. 



Stems 2-4 in. high by 1 line in breadth, slender, flexuose, of a 

 brownish colour, destitute of rootlets except on the creeping portion, 

 sparingly branched ; the branches arising from the ventral aspect, 

 sometimes innovant at the apex, which is more or less curved or scor- 

 poidal. Leaves of nearly uniform size, except at the base of the stem, 

 where they are smaller and more distant, about -gV ii^- in diameter, 



