6 a 



NOTES ON THE BRITISH GHARAGEM FOR 1887-9. 



By Henry and James Groves. 



(Plate 296.) 



Of the three years which have elapsed since the publication of 

 our last instalment of ' Notes,' 1887 and 1888 were comparatively 

 unproductive of additions to our knowledge of the British Chara 

 Flora. During 1889, on the other hand, one new species has been 

 added to our list, and we have received specimens representing 

 important extensions of the known distribution of several of the 

 rarer species. 



In our 'Notes' for 1883 we gave a list of the 48 Watsonian 

 counties from which we had not seen specimens of any of the 

 species. This list is now reduced to 22, viz. : — Gloster E., Mon- 

 mouth, Denbigh, Flint, Ayr, Linlithgow, Aberdeen N., Banff, 

 Cantire, Ebudes M. & S., Cork S., Tipperary N., Kilkenny, Carlow, 

 Queen's Co., Wexford, Kildare, King's Co., Longford, Monaghan 

 and Tyrone. The most neglected districts at the present time 

 are: — 1. That around the Bristol Channel and almost the whole of 

 Wales, Carnarvon and Anglesea being excepted. 2. A band across 

 the south of Scotland from Ayr to Berwick. 3. North Aberdeen 

 and Banff. 4. The Islands from Mull to Cantire. 5. A large tract of 

 the interior of Ireland reaching almost from the north to the south. 



Through the kindness of Mr. F. J. Hanbury, we have been 

 enabled to examine the specimens of British Charas in the herbarium 

 of the late Dr. Boswell, the most interesting result being the finding 

 of a specimen of Nitella mucronatn from Hants N. We take this 

 opportunity of thanking our correspondents for the specimens they 

 have sent us. 



Chara fragilis, Desr. — Devon N., 1864, W. P. Hiern, herb. 

 Boswell; Worcester, 1889, R. F. Towndrow ; Brecon, 1885, J. Fraser, 

 comm. A. Bennett; Carnarvon, 1885, J. E. Griffith, comm. A. Ben- 

 nett; Haddington, 1867, J. B. Syme, herb. Boswell; Ebudes N., 

 1883, H. N. Dixon, comm. J. Saunders; Ross E., 1889, //. T. 

 Mennell, comm. A. Bennett; Hebrides (S. Uist), 1888, A. Somerville, 

 comm. A. Bennett; Down, 1887, S. A. Stewart. 



var. barbata. — Kirkcudbright, J. Mc Andrew ; Ross E., 1889, 

 H. T. Mennell, comm. A. Bennett; Orkney, 1888, J. W. H. Trail, 

 comm. A. Bennett; Channel I. (Guernsey), 1889, E. D. Marquand. 



var. capillacca. — Stirling, 1884, R. Kidston ; Kerry S., 1887, 

 R. Scully. 



var. 'Hedwifjii. — Norfolk E., 1885, E. F. <& W. R. Linton; 

 Northampton, 1889, H. N. Dixon, comm. J. Saunders. 



var. delicatula.— Perth W., 1888, R. Kidston. 



C. connivens, Braun. — Norfolk E., Heigham Sound, 1889, J. 

 Bidgood. An important extension of the British distribution of this 

 species, which had hitherto only been collected in Devon S. and 

 Hants S. 



Journal of Botany. — Vol. 28. [March, 1890.] f 



