48 ANNALS OF SCOTTISH NATURAL HISTORY 



but this will not invalidate the name, as there can be no 

 doubt that his plant, of the second edition of " Flora 

 Anglica," is this species. Under this Kiikenthal puts var. 

 brunnescens (Anders.) from Scotland (Marshall and Druce) ; 

 forma sparganiformis (Murr.), Scotland (Druce), and var. 

 utriculata (Boott.), which is the plant wrongly called 

 C. rhynclwphysa in " Lond. Cat.," ed. 9, from Ireland. 

 C. rostrata x vesicaria, Perth.!, Glen Callater (Marshall). 

 Kiikenthal makes no allusion to Bennett's variety gracilis of 

 C. l&vigata (C. helodes, Link.). C. binervis, Sm. : Kiikenthal 

 gives a var. alpina, Drejer, "Rev. Crit." (1841), 56; and 

 under this both my Scottish nigrescens, and Linton's Sadleri, 

 originally described as C. frigida, from Glen Callater, by 

 Sadler, but which was not that continental species. My 

 nigrescens is a less extreme alpine form than Sadler's plant. 

 Kiikenthal cites for var. alpina my plants from Loch 

 Ceannmor, 1214, Glen Callater, 23,006, Perth, 500, 571 ; 

 also Callater, 2990 (Marshall). C, distans, L. ; with this 

 C. neglecta, Degl., the maritime form, is considered to be 

 synonymous. C. B. Clarke believed the Linnean C. 

 distans to be C. binervis, Sm., and has suggested the name 

 C. Vikingensis for our plant, but this view is wisely rejected 

 by Kiikenthal. C. Hornschuchiana, Hoppe, is the name 

 retained for the plant for which our recent British lists use 

 C. fulva, Host, a combination not given in " Pflanzenreich," 

 but possibly overlooked. It has priority over Hoppe's 

 name. 



C. ftava, L., is kept distinct. Under it there is a var. 

 pygmcea, Anders. Lange named a Scottish specimen of 

 mine pumila, Anders., a lapsus calami unfortunately followed 

 in my List. Kiikenthal also has a forma rectirostris, Peterm. ; 

 this latter name was given by Fernald to my specimen of 

 Townsend's var. argillacea. 



C. lepidocarpa is given full specific rank, since it keeps 

 true in cultivation, and natural hybrids occur, of which I 

 have sent Kiikenthal several of C. flava x lepidocarpa from 

 Perth, Glen Callater, Forfar, etc., and Marshall has sent 

 others of lepidocarpa x HornschucJiiana from Caithness, 

 Sutherland, and Orkney. 



C. Oederi, Retz is also kept distinct ; but, while I have 



