NEW AND RARE BRITISH HEPATIC^ 65 



I find this plant to be L. badensis. Spruce had named it J. turbi- 

 nata 9 then corrected it to J. acuta. As showing the difficulty of 

 this group, I find that a plant, also given to me by Mr. Slater, from 

 the Pyrenees, named J. acuta by Spruce, is a small form of J. 

 Muelleri. It has numerous well-developed under leaves, and thick- 

 ened angles to the leaf-cells. The other localities which Mr. Pear- 

 son gives for the var. acuta are — near Buxton, Derbyshire, J. White- 

 head ; and Ash wood Dale, near Buxton, G. A. Holt. I have not 

 seen these specimens. Prof. Barker kindly sent me the only packet 

 of J. acuta in Whitehead's herbarium ; it is from Sands, Southport, 

 May, 1868, G. E. Hunt. There are only a few stems, insufficient 

 to be certain of, but they seem rather more like L. badensis than 

 L. Muelleri. Canon Lett, in Brit. Hep., follows Mr. Pearson. He 

 does not give any new localities. In my Census of Scottish Hepatica 

 [Ann. Scot Xat. Hist. p. 48, 1904) I have given L. Muelleri var. 

 acuta for Elginshire. More recent examination shows this plant to 

 be L. Muelleri var. pumila Nees. 



It had been known for some time that J. acuta of Lindenberg 

 was a mixed species. Lindberg, in Muse. Asm bor. p. 46, mentioned 

 that the name could not stand, and Schiffner has gone exhaustively 

 into the subject in his paper, which the student must consult. It is 

 there clearly shown that no definite plant can be assigned to that 

 name. 



I omitted to give the reference of Jungermannia bantriemis var. 

 acuta (Lindenb.), which Lindberg has in Hepat. in Hib. lecta, 1875, 

 p. 528. The locality where he found the plant is Connor Hill, 

 co. Kerry, I have not seen a specimen. 



Prionolobus striatulus (C. Jens.) Schiffn. Cephalozia striatula 

 C. Jensen in Revue Bryol. p. 25 (1904). I found this* addition to 

 our flora on Lousie Wood Law, Elvanfoot, Lanarkshire, alt. 1900 ft., 

 Jane 6th, 1906. This hill belongs to the Lowther range of the 

 Southern Uplands, and like most of them has a broad round 

 summit. It is one of those having a layer of peat over the upper 

 part, on which is found the Vaccinium Myrtillus, Empetrum, and 

 Pob/trichum association, and it is in this association that the 

 Prionolobus occurs, creeping over the decaying parts of very com- 

 pact tufts of Sphagnum. The Elvanfoot plant had abundance of 

 perianths. It agrees with specimens given me by Herr Persson 

 from the original localities in Sweden, and with the description and 

 figures in Revue Bryologique. It cannot very well be confused with 

 any other of our species except Cephaloziella elachista, but the latter 

 is readily distinguished by its larger thin-walled leaf-cells. 



The Prionolobus has been found in Sweden, Denmark, and 

 France. Prof. Douin, who has found it in the latter country, 

 states, in his recently published Muscinees d'Eure-et-Loir, p. 257, 

 that this is the species from the Swiss Jura which Boulay has given 



in Muse, de la France, ii. Hepatiques, p. 69, as Cephalozia elachista, 



and that the latter, as far as he knows, has not yet been found in 

 France. C. elachista has lately been found in Sussex by Mr. 

 Nicholson. It had previously been recorded as a Britannic plant 

 only from Ireland. 



