102 ENGLISH BOTANY. 



A'ar. a, genu ilia, 



Plate MDCXXXI. 



Reich. Ic. Fl. Germ, et Helv. Vol. Vni. Tab. CCVI. Fig. 546. 



Billot, Fl. Gall, et Germ. Exsicc. No. 2155. 



C. curta, Bah. Man. Brit. Bot. ed. vi. p. 381. Kunth, Enum. Plant. Vol. II. p. 



403. 

 C. canescens, Linn, ex parte. Koch, Syn. Fl. Germ, et Helv. ed. ii. p. 870. Grcn. & 



Godr. Fl. de Fr. Vol. III. p. 398. Belch. Ic. I.e. p. 7. Fries, Summ. Veg. 



Scand. p. 72. Pari. Fl. Ital. Vol. II. p. 144. 



Spikelets usually 6 or 7 or even more, oblong-ovoid, many -flowered. 

 Glumes whitish, tinged with green. Fruit pale, with the beak slightly 

 bifid. 



Var. 3, alpicola. Wahl 



Plate MDCXXXII. 



Beich. Ic. Fl. Germ, et Helv. Vol. VIII. Tab. CCVE. Fig. 547. 



C. vitiHs, Fries; Bah. Man. Brit. Bot. ed. vi. p. 381. Fries, Mant. III. p. 137; and 



Summ. Veg. Scand. p. 72. Gren. & Godr. Fl. de Fr. Vol. III. p. 398. 

 C. Persoonii, " Sieher;" Koch, Syn. Fl. Germ, et Helv. ed. ii. p. 870. Pari. Fl. Ital. 



Vol. II. p. 145. Beich. Ic. 1. c. p. 7. 

 C. Gebhardi, iTop^e; Kunth, Enum. Plant. Vol. II. p. 402 (non Schkuhr). 



Spikelets usually 4 or 5, roundish-ovoid, few-flowered. Glumes 

 yellowish-brown, with a green keel and white margins. Fruit smaller 

 and darker in colour than that of var. a, and with the beak more 

 deeply bifid. Whole plant smaller and more slender than var. a. 



In bogs and mar.shes, usually growing in shallow ditches and pools. 

 Var. a, rather common and generally distributed, but not reaching the 

 extreme north of Scotland. Rare, but widely distributed in Ireland. 

 Var. 0, on mountains in Wales, York, and the Scotch Highlands; 

 very abundant on the table-land which separates the counties of Aber- 

 deen and Forfar, at the head of Canlochan Glen. 



England, Scotland, Ireland. Perennial. Summer. 



Var. a has the stems 9 to 18 inches high, the leaves |^ to ^ inch 

 broad, the spikes 1 to IJ. incli long ; spikelets i to f inch long; fruit 

 about y\7 inch long. 



The plant has the habit of C. elongata, but is much more glaucous. 

 Spikes shorter, of fewer, shorter, and paler spikelets; the fruit much 

 more erect, smaller, and much less strongly ribbed, and with the beak 

 extremely short, notched at the end, and not deflexed. 



Var. 3 has the stems 6 inches to 1 foot long, more decumbent and 

 the leaves narrower than in var. a, the spike | to 1 inch long, the 

 spikelets ^ to l inch long, but the brown glumes afford the only character 



