NOTES ON SOME BRITISH SEDGES. 81 



A narrow-leaved, peculiar plant, which is plentiful among 

 Sphacpmni in Wybunbury Bog, Cheshire, and was sent by me to 

 the Bot. Exch. Club in 1895, queried as C. involuta Bab., Herr 

 Kiikenthal and Mr. Bennett agree in considering as only a form of 

 C. rostrata. 



G. rostrata X vesicaria. Two of my plants, both totally sterile, 

 are referred to this ; the first was collected in Glen Callater, 

 S. Aberdeen, in 1886 ; the second (my no. 95) in a bog on Meall 

 Ghaordie, Perthshire, at 2800 ft., in 1891 ; it was then referred to 

 C. rostrata var. hninnescens Andersson by Mr. Bennett. I incline 

 to believe that they are the suggested hybrid. Has not C, mvoUita 

 Bab. the same origin, as Herr Kiikenthal surmises? 



C. VESICARIA L. Herr Kiikenthal places C. Grahami Boott, of 

 which I was able to lay before him both well-matured wild speci- 

 mens from Glen Fiagh, collected in 1893 by Mr. W. B. Boyd, and 

 younger cultivated examples from Kew Gardens (1892), as a variety 

 of C. vesicaria, rather than of 0. pulla Good. This confirms my 

 own previous opinion, based upon observation of the living plant at 

 Kew. He endorses my naming of a sedge from Meall Ghaordie 

 (1891), and also determines a tall-growing sedge from the large bog 

 on the east side of Ben More, Perthshire (1889), at 2700 ft. (my 

 no. 492), as Grahami; these are somewhat immature, but agree 

 quite closely with the Kew specimens already mentioned. 



Var. ALPiGENA Fries. Two gatherings, of 1888 and 1889 (the 

 latter being my no. 493), from the large bog on the east side of 

 Ben More, below Am Binnein, are so named, as well as a sheet from 

 the Glen Lyon side of Meall-nan-Tarmachan, Perthshire, collected 

 in 1891. These are practically identical with Swedish plants 

 received from Herr Kiikenthal, collected in a muddy marsh at 

 Storlien, Jemtland (alt. 600 metres), last year by Emil Warodell, 

 though not so well advanced in fruit. 



I have carefully examined the authentic specimens of Fries, 

 Herb. Normale, xviii. 71, in our two national herbaria, which do 

 not agree well together. They are labelled " Jemtland, Syltoppen, 

 &c. Leg. C. F. Backman. Exstat forma C. vesicarim 0. rotunda tcB 

 prorsus respondens et sub C. pulla confunduntur specimina tarn e 

 stirpe C. vesicaria quam C. ampullacecE." The British Museum plant 

 looks to me like a tall-growing pulla, but is not very well developed. 

 At Kew, however, the material is far more satisfactory ; there are 

 two plants, the left-hand one (almost exactly agreeing with my 

 no. 493) having heads of rather a light brown, with the fruit not 

 very strongly ribbed ; in the right-hand one they are dark (blackish) 

 brown with strongly ribbed perigynia ; both are about 15 in. high, 

 the glumes having a broad hyaline tip. They show an evident 

 approach towards Grahami, and should, I think, be classed under 

 C. vesicaria rather than under 0. pulla, although forming one of the 

 connecting links between the two. 



One specimen on the Glen Lyon sheet just mentioned is ex- 

 tremely near to Fries, Herb. Normale plants, collected by Andersson 

 and labelled " saxatills {dichroa) typica, spicis baud infuscatis i. e. 



