288 HEPATIC^. 



15. On rocks above Loch Avon, Dr. GreviUe, 1830; A. Croall 

 1850; G. Stabler. Ben Lawers, Br. Stirfon, 1866. Ben Voilich, 

 Dr. Stirto7i, 1869. Ben Laoigli, C. J. Wild Sf G. A. Holt, 1880. 

 16. Loch Maree, C. Howie, 1867. Glen Finnan, Dr. Carrington. 

 Moidart, West Inverness, S. M. Macmcar, 1898 ; 8. M. Macvicar 

 8r IF. H P., 1899. Faroe Isles. 



Obs. — This very fine, rare, and beautiful species was first 

 recognised as distinct by Dr. Stirton, who named it in his MSS. 

 Alicularia viridis. 



Prof. Balfour publislied it as Adelaniluis Carringtoni in the 

 Trans. Bot. Soc. Edin. 1870, and I am glad that the memory of 

 my dear friend sliould be associated with such an unique British 

 species. 



From Nardia covipressa (Hook.), to which it has even been 

 relegated, as a variety, by Prof. Lindberg, it is at once and readily 

 distinguished by its beautiful cell structure. In N. compressa the 

 cells are more quadrate, with thin walls and small trigones ; the 

 leaves also are nearly plane, appressed to each other, texture more 

 delicate, epidermis not polished, and it has a terminal immersed 

 perianth. 



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



2. Portion of stem x 16 (C. & P. n. 233, and following figures). 



3, 4. Leaves x 24. 5. Leaf with teeth x 24. 6. Leaf x 16. 

 7. Portion of leaf margin x 85. 8. Portion of leaf x 290. 

 9. Stipule X 85. 10. Antheridium. 



Genus 31. JUNGERMANIA, L. 



L. Sp. pi. 1131 (1753); Dum. Recueil, p. 16 (1835). 



Plants medium size, rarely very large. Stems simple or 

 furcate, in a few species repeatedly dichotomous, in several 

 vaguely ramose, branches (few) lateral, proceeding from the 

 postical angle of the leaves, true postical branches none or very 

 rare, but rooting fliagella present in some species. Rootlets 

 usually pale, in the prostrate species plentiful, in the caespitoso- 



