OF ARTS AND SCIENCES. 121 



182. Carex B0OTTIANA3 Bentham; Boott in Journ. Bost. Nat. Hist. 

 Soc. 18-15, V. 112. 



C. picta, Steud. Cyper. Plant. 184. 

 Differs from tlie last in its dioecious inflorescence, solitary and 

 thicker spike whicli is very densely flowered, more uniformly brown 

 pistillate scales, straight, smoother, and emarginate perigynium, and 

 narrower leaves. I refer this to the Dlgitatue because its resemblance to 

 C. Baltzellii is so close, and because empty and conspicuous sheaths 

 sometimes occur. — Dr. Francis Boott, the greatest of caricographers, 

 author of the monumental " Illustrations of the Genus Carex." — New 

 Orleans, Drummond; N. W. Alabama; Lawrence Co., Peters, and 

 Winston Co., Mohr. Rare. 



183. Carex truncata, Boeckeler, Flora, 1858, 649. 



" Bright green, cespitose : rhizome very short, the fibrils slen- 

 der and pale : culms erect, four to ten inches high, flatly triquetrous, 

 leafy, the basal sheaths leafless, lanceolate, and dull ferruginous, 

 roughish above : leaves little longer than the culm, firm, plane, acumi- 

 nate, nerved, the margins above and the nerves rough (one to two 

 lines wide) : spikes greenish white, densely many-flowered, the stami- 

 nate linear-oblong, acute (six to seven lines long and a line wide), 

 short-peduncled, furnished with a scale-like aristate bract, the pistillate 

 about three, remote, erect (in flower), slender, cylindrical, subulate- 

 acuminate, the upper short, short-stalked (four lines long), and near 

 the staminate spike, the others rather long-peduncled and six to seven 

 lines long: lower bracts leafy and sheathing, the lowest far surpassing 

 the culm : scales small, hyaline and whitish with a green back, broadly 

 obovate, the staminate obtuse and abruptly short-pointed, the pis- 

 tillate amplectant, lightly 3-nerved, the apex truncate-emarginate and 

 rough-aristulate : perigynium (young) about equalling the scale, obo- 

 vate, nearly trigonous, green, beakless, the apex obtuse and slightly 

 recurved, smooth : style deeply trifid. — New Orleans, Drummond, 

 423." a Baltzellii^ 



Section VIII. SPH^RIDIOPHOR-^, Drejer, Symb. Car. 9. 

 Perigynium mostly short and rounded, three-angled in the Triquetras, 

 the beak straight and usually bifid, firm or hard in texture, not inflated, 

 hairy or scabrous (smooth in C. Whitneyi) ; staminate spike one ; 

 pistillate spikes short (an inch or less long), usually globular or short- 

 oblong, more or less sessile and approximate or the longer ones radical ; 

 bracts sheathless, short or obsolete ; stigmas rarely two. — Low species 

 of dry ground, with leaves all radical. The perigynia of G. Jib' folia 



