66 THE JOURNAL OF BOTANY 



Cephaloziella 



Cephalozia integer 



rima Lindb. in Meddel. Soc. pro Fauna et Fl. fenn. 1876. Mr. 

 Nicholson sent ine from Sussex two specimens of an hepatic, men- 

 tioning at the same time that they rather reminded hiui of a 

 specimen of C. Bryhnii received from M. Douin. The labels were: 

 " Damp sandy hedge-bank, Slugwash Lane, Wivelsfield, September, 

 1906," and " Damp sandy ground under heather, St. Johns Com- 

 mon, Crowborough, 7th October, 1906, " both plants having been 

 gathered by himself. The specimen from the latter locality was in 

 the best condition, though mixed with C. byssacea (Roth.) Warnst. 

 On examining these plants I found that without doubt they be- 

 longed to an unrecorded British species, and that they were either 

 C. Bryhnii Kaal. or C. integer rima Lindb. On comparing a speci- 

 men of the former from Smestad, near Christiania, Sept. 27th, 

 1895, leg. Eaalaas with specimens of the latter from near Soder- 

 telge, Sodermanland, June 20th, 1903, and Sept. 10th, 1903, both 

 leg. J. Persson, it struck me that all these plants belonged to one 

 species, and further examination confirmed this opinion. Mr- 

 Nicholson has since told me that a suspicion of the identity of these 

 two species had crossed his mind independently, and that had it not 

 been that the name Bryhnii was uppermost in his mind from bis 

 recent correspondence with M. Douin, he would probably have 

 suggested that the plants which he was sending me were integernmu 



Herr Kaalaas, in describing C. Bryhnii in De Dist. Hep. w 

 Norreg. p. 153, 1893, gives the differences between it and C. in- 

 tegerrima in the former having acute leaf-lobes, and in the structure 

 of the perichaetium. As to the leaf-lobes, I cannot find that there 

 is any constant difference. C. Bryhnii has frequently rather obtuse 

 lobes, and C. integerrima has them often rather acute. The leal- 

 cells do not show any difference. With regard to the more im- 

 portant mark — the structure of the innermost involucral bracts— 

 although Herr Kaalaas' plant has sometimes more acutely lobed 

 bracts than any I have found in C. integerrima, there are on the 

 other hand many of the bracts which are indistinguishable from 

 those of the latter plant. 



If. Douin, in his MuscinSes d* Eur e-et- Loir, p. 262, 1906, de- 

 scribes and figures a Cephaloziella under the name C. pirifl ora ' 

 nov. sp. In a note he mentions the poiuts in which it differs from 

 C. Bryhnii, but the specimen given to him as the latter species was 

 probably a mixture, as the acute and strongly dentate lobes of the 

 involucral bracts which he gives is not applicable to C. Bryhnii. w 

 the Addenda, p. 354, he quotes a remark from Prof. Scbiffner: 

 " Your Ceph. piriflora is quite certainly identical with C. Bryhnn 

 Kaal. !" M. Douin kindly sent me a specimen from Montigny le ' 

 Chartif, Eure-et-Loir, April 16th, 1906. The lobes of the invo- 

 lucral bracts are very obtuse in this plant; the leaves are also 

 rather obtuse. In fact, it more resembles my specimens of V. **' 



tegew'ima than that of C. Bryhnii. . 



The highly connate, very obtuse bracts and bracteole of C. "fj 

 tegerrima will at once distinguish it from any other of our describe^ 

 species. Mr. Nicholson is to be congratulated on the discovery o 

 such a distinct addition to our flora. 



