250 Caricography. 



Culm four to six inches high, slender, erect, stiiF, smooth, longer 

 than the sub-bristle-form leaves, which are sheathed at the base ; 

 spike one, staminate above ; stigmas three ; fruit ovate, trique- 

 trous acute or sub-rostrate, somewhat diverging, smooth ; scales 

 all oblong, obtuse, tawny white on the edge, and mostly shorter 

 than the fruit ; color of plant a pale green, and of spike, a dirty 

 brown. 



Found by Dr. Richardson on the Rocky Mountains. It is nearly 

 related to C. spicata, Schk. Tab. D. fig. 15, if it is not indeed the 

 same plant which inhabits the Pyrennees. 



No. 156. C. Redowskiana, Meyer. 

 Tab. Y. fig. 80. 



Spica unica dioica oblonga ; fructibus lineari-oblongis utrinque at- 

 tenuatis laevibus ore bilobo hyalinis, squamam obtusam ovatara in 

 margine scariosam sub-duplo longioribus ; culmo Isvi, foliis trique- 

 tro-setaceis. 



Culm five to eight inches high, triquetrous, very slender, erect, 

 sulcate, glabrous, leafy towards the base ; leaves setose, triquetrous, 

 glabrous, nearly equalling the culm ; stigmas two, scales with a broad 

 white scarious margin ; fruit smooth, glabrous, nerved, and with an 

 obtuse two-lobed orifice. 



Found in Kamtschatka by Dr. Redowski, and on the Rocky 

 Mountains by Dr. Richardson. 



No. 157. C. Backana, D. 

 Tab. Y. fig. 81. 



Spica unica superne staminifera ; fructibus tristigmaticis ovato- 

 globosis sub-conico-rostratis fuscis paucis ore scarioso laevissimis, 

 squama ovata acuta membranacea paulo longioribus. 



Culm four to six inches, triquetrous, sub-erect, nearly smooth, 

 leafy towards the base ; leaves flat, linear-lanceolate, shorter than 

 the culm, and lower ones the shortest ; spike single, with oblong 

 and obtusish white scales above, and about four pistillate flowers 

 below with three stigmas ; fruit ovate, spherical and tapering into a 

 conic beak, very smooth and dark brown, with an orifice lacerated 

 or scarious. 



This is a beautiful species ; and was found by Dr. Richardson 

 in British America, near Carlton House. 



