354 ARENARIA GOTHICA FRIES, IN BRITAIN, 



Obs. — Differs from Lejeimea cat car ea Lib. by its dioicous inflore- 

 scence, more opaque texture, slightly larger size, leaves a little 

 more spreading, echinate lobule with its margin much more dentate - 

 spinulose, and not incurved, as in L. colcarea, whose margin cannot 

 be seen without dissection, and by the entire absence of the styli- 

 form appendage usually found between the stem and the leaf of 

 calcarea. This distinct species, first discriminated by the Italian 

 botanist. Prof. Massalongo, from specimens collected in Italy by 

 Dr. Rossetti, has been confounded by British botanists with L, 

 calcarea, but from which, by the above-mentioned characters, it is 

 seen to be abundantly different. Dr. Carrington has been kind 

 enough to place at my disposal his extensive collection of Lejeunece, 

 and I find that the original specimen of Dr. Taylor's Lejeimea 

 echhiata is none other than the species of Prof. Massalongo, and 

 is accurately figured in Hooker's 'British Jungermanisa,' Suppl. 

 t. iii., as Jimgermania hamatifolia var. echinata. 



Dr. Spruce informs me that the type-specimen of Madam 

 Libert's species is the true L. calcarea, having the styliform 

 appendage, smooth lobule, &c. ; and all specimens distributed in 

 the various Exsiccata I have had the opportunity of examining 

 (G. et R. Hep. Eur. 46, 283, 328, 365 ; Crypt. Bad. 474 ; Massal. 

 Hep. It. veil. 15) are true calcarea, with the exception of those in 

 SuUiv. Muse. Alleghan. 275, and Aust. Hep. Bor. Am. 99, which 

 are to be referred to Lejeimea Biddleconiice Aust. Herb. ; and the 

 specimens named Lejeimea echinata in Drummond's ' Mosses of 

 North America,' which belong to quite a different species. 



I have to thank Dr. Carrington for the loan of specimens, and 

 Dr. Spruce for help in the preparation of the paper and the notes 

 printed, by an accident, in the last number of this Journal. 



Explanation of Plate. — Fig. 1, Plants, nat. size. 2, stem, antical view, 

 X 24. 3, portion of stem, postical view, x 64. 4 — 7, leaves, x 64. 8, portion 

 of leaf, X 290. 9, papillae, x 290. 10, bract, x 64. 11, perianth, x 31. 12, 

 cross-section of perianth, x 31. 13, apex of perianth, x 31. 14, leaf of L. 

 calcarea Lib., showing styliform appendage (after Massalongo). 



ARENARIA GOTHICA Fries, IN BRITAIN. 

 By William Whit well. 



My brief note in the October ' Journal ' reported the dis- 

 covery of Arenaria gothica Fries, at Ribblehead, in the vice-comital 

 division of Mid-West Yorkshire, by Mr. Lister Rotheray, of Skipton, 

 on the 12th of June last. Mr. Rotheray noticed, near the Ribble- 

 head railway station, two patches of white flowers of a kind not 

 before known to him, which proved on examination to be an 

 Arenaria, but the species of which he could not determine, though 

 he suspected it to be ciliata. He collected a number of specimens, 

 both at the time of his first observing them and on his return to 

 the station at the close of the day's excursion. 



The plant was afterwards submitted for the opinions of 



