CAEEX ORNITHOPODA AS A BRITISH PLANT. 195 



The following references will give further information on the 

 species : — 



Caeex oenithopoda, Willd.Sp. Plant., iv., p. 255.— Kunth, Enum., 

 ii., p. 472; Steudel, Synops. Cyp., p. 232 j Boott, 111. Car., 

 iv., p. 195 ; Gandin, Agrost. Helv. (1811), ii., p. 144; Koch, 

 Synops. ri. Germ., ed. 2, p. 878 ; Hartman, Skand. FL, 

 ed. 10, p. 242; Blytt, Norges FL, p. 244 ; Gren. andGodr., 

 Fl. France, iii., p. 418 ; Boreau, Fl. Centre, ed. 3, p. 673 ; 

 Godr., FL Lorraine, ed. 2, p. 373 ; Lang, in Linnsea, xxiv., 

 (1851), p. 594; Willk. and Lange, FL Hisp., L p. 126; 

 Crepin, Fl. Belg., ed. 2, p. 323 ; Bertoloni, Fl. Ital., x., p. 

 79 ; iSchur, Enum. Transyllv., p. 718 ; Ledebour, Fl. Ross, iv , 

 p. 290. 

 Figures: — -Host, Gram. Austr., i., t. 61 (good) ; Schkuhr, Car. t. 

 H., f. 37 (good) ; FL Danica, t. 1405 ; Hoppe & Sturm, Caric. 

 Germ., t. 13 ; Reichenb., Ic. FL Germ., viii., t. 240, f. 598 ; 

 Andersson, Cyp. Scand., t. vii., f. 87 ; ISTees ab Es., Genera, 

 Carex, fig. 18 ; Boott, Ic. Ined. in Herb. Kew., t. 656. 

 Exsiccata : — Fries, Herb. Norm., fasc. 3, no. 70 ; Billot, no. 871 ; 

 Reichenbach, no. 1121 ; Wirtgen, Herb. Fl. Rhen., no. 285 ; 

 Schultz and Winter, Herb. Norm., n. 177 ; Meinshausen, 

 Herb. Fl. Ingric, n. 709. 

 Distribution : — C. ornithopoda his been found in the following 

 European countries : — 'Norway, Sweden, Lapland, Finland, Russia (St, 

 Petersburg!), Rhine provinces !, Baden!, Luxemburg, France (centre 

 and east!), Switzerland!, Pyrenees!, Austria (Tyrol!, Hungary!. 

 Transyllvania), Bosnia, Italy (north and central.) It is absent from 

 "Western and Southern France, Spain (exceptPyrenees), Portugal, 

 Holland, Northern Germany and Denmark. Wooded hills on a calca- 

 reous (limestone) soil are the usual localities ; and it is frequently noted 

 that C ornithopoda and C. digitata grew together ; the former, however, 

 seems to be in most, if not all, countries the rarer, and is indeed wanting 

 in many districts where digitata is common* The two species appear 

 to flower at the same time, though authors differ in this matter. C. 

 ornithopoda extends into Siberia, but is otherwise restricted to Europe, 

 the boreal American species C. coyicinna, R. Br., doubtfully referred it 

 to by some writers, being a very different plant. The South Tyrol plant 

 described by Hausmann in the ''Flora "for 1853, p. 225, as C. orni- 

 thopodioides may be perhaps only a variety with glabrous fruit, as 

 Steudel is disposed to think. It is figured in the Flora for 1855, t. 14, 

 and fully described there by Leybold. I have seen no specimens, but 

 Mr. Churchill who knows the plant wild, tells me that it is readily 

 recognised and is remarkable as being one of the few species which 

 so far as known are absolutely restricted to Dolomite rock. 



The counties recorded for C, digitata are (see Topog. Bot., p. 

 449) Devon, Somerset, Wilts, Gloucester, Monmouth, Hereford, 



* Mr. Whitehead informs me that C. digitata cannot be found in Miller's 

 Dale, though it has been carefully sought for. Sowerby's herbarium in the Bri- 

 tish Museum, it may be mentioned, contains an example, without date or collec- 

 tor's name, from '* Mansal Dale, Derbyshire," but it has not been recorded for the 

 county for many years. 



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