136 ENGLISH BOTANY. 



Group T— FRIGIDiE. 



Rootstock subcojspitose or slightly creeping, with short stolons. 

 Spikes rather approximate or the lower one remote. Male spike 1, 

 shortly stalked, sometimes Avith a few female flowei's, thick, solitary. 

 Female spikes 2 to 4, dense, occasionally with a few male flowers at 

 the apex, ultimately pendulous, on exserted stalks, or sometimes the 

 uppermost ones subsessile. Glumes of the female flowers reddish- 

 black, concolorous or with the midrib green or red. Lowest bract 

 foUaceous or subfoliaceous, not reaching to the apex of the male spike 

 and generally much shorter, with a long closed sheath. Fruit dark 

 brown or nearly black, usually green on the margins, ovate or lance- 

 olate, pointed, trigonous or depressed-trigonous, moderately inflated, 

 smooth except on the margins, dim or slightly shining, obsoletely 

 ribbed, with a rather short or long rough notched or bidentate straight 

 beak. Stigmas 3. Nut triquetrous, loosely covered by the peri- 

 gynium. 



Stem leafy only at the base or in the lower part. Leaves rather 

 narrow, firm. 



SPECIES XLV.— C AREX USTULATA. Wahl. 

 Plate MDCLXIII. 

 Edch. Ic. Fl. Germ, et Hclv. Vol. VIII. Tab. CCL. Fig. 615. 



Rootstock shortly creeping, with short stolons. Stem erect, rather 

 stout, stiff, trigonous, smooth throughout, leafy only at the base. 

 Leaves erect, much shorter than the stem, firm, linear, flat, rough on 

 the margins, green, not glaucous. Male spike 1, shortly stalked, 

 fusiform -ovoid, exceeding the female spike. Female spikes 2 to 4, 

 rather approximate, on long exserted stalks, pendulous, ovoid, nar- 

 rowed at the base, dense, many-flowei'ed. Bracts sheathing, subfolia- 

 ceous, the lowest one with a short subulate lamina not exceedmg the 

 stalk of its spike. Glumes of the female flowers ovate, acute or 

 sliglitly acuminate, purplish-black, concolorous, a little shorter and 

 narrower than the fruit. Fruit ascending, sessile, ovate, pointed, de- 

 jiressed-trigonous, moderately inflated, scarcely ribbed, quite smooth, 

 dim, chestnut-black, rather gradually acuminated into a short straight 

 slightly rough-edged bidentate beak, one-fourth as long as the length 

 of the rest of the fruit. Stigmas 3. Nut pale yellow, elliptical-tri- 

 quetrous, acuminate at each end, apiculute. 



