CYPERACEiE, 137 



In wet places on mountains. Very rare, and perhaps extinct. 

 Said to have been found on Ben Lawers by Mr. George Don. 



Scotland (extinct ?). Perennial. Summer. 



Stems 6 inches to 1 foot high. Leaves about }.; inch broad or more, 

 sheathing the base of the stem, the upper part of which is quite naked. 

 Male spike -^- to i inch long; female spikes g to § inch long, the 

 lowest one with a stalk usually exceeding its own length, about half 

 of it contained in the sheath of the bract, and the upper extremity 

 commonly with 1 or 2 em[)ty glumes immediately below the spike. 

 Fruit Jr inch long. Nut not half tlie length of the perigynium. 



Specimens of C. ustulata were distributed by Mr. George Don, and 

 said by him to have been found on Ben Lawers. I possess one of 

 these specimens labelled 1810, but since then the plant has not been 

 found. The specimen alluded to has micaceous soil adhering to the 

 roots, and it may therefore be assumed that it is not of garden origin. 

 Don has never been accused of distributing foreign specimens of plants 

 as British, though he often labelled specimens from his garden as 

 being from stations where he erroneously believed he had seen the 

 same species growing. 



Scorched Alpine Sedge. 



Group U.— TENUES. 



Rootstock subcffispitose or slightly creeping, mth or without short 

 stolons. Spikes approximate or remote. Male spike 1, stalked, 

 sometimes longly so, slender, solitary. Female spikes 2 to 4, lax, 

 ultimately inclined or drooping, more rarely erect, on long capillary 

 exserted stalks. Glumes of the female flowers orange- or purplisli- 

 brown or olive, always with a green stripe on the back and broad 

 pale scarious margins. Lowest bract foliaceous or subfoliaceous, 

 rarely reaching to the apex of the male spike and generally much 

 shorter, with a long closed sheath. Fruit pale brown or olive, 

 ovoid-trigonous, pointed, moderately inflated, smooth (rarely slightly 

 hispid), shining, faintly ribbed or without ribs, with a rather long 

 rough or smooth entire or membranous and bilobed more or less 

 deBexed beak. Stigmas 3. Nut triquetrous, loosely covered by the 

 perigynium. 



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

 firm. 



VOL. X. 



