246 Caricography. 



pistillate scales, oblong-lanceolate, obtusish, black, three or four 

 times longer than the fruit ; bracts, leaves, and culm very rough. ^ 

 Found on Columbia River. 



No. 146. C. petricosa, D. 

 Tab. W. fig. 70. 



Spicis subquaternis oblongis tristigmaticis, terminali androgyna 

 superne staminifera, inferioribus exserte pedunculatis ; fructibus lan- 

 ceolatis laevibus acutis ore apertis, squama ovato-oblonga obtusius- 

 cula brevioribus. 



Culm ten inches high, triquetrous, smooth, leafy tovs^ards the base, 

 upper leaves long as the culm ; bracts leafy and sheathing ; spikes 

 four, exsertly pedunculate, oblong, subremote ; fruit lanceolate, 

 smooth, with an open mouth ; stigmas three, and upper spike sta- 

 minate above ; pistillate scale ovate, oblong, rather obtuse and 

 longer than the fruit, reddish-brov^^n on the edge and v^^hitish on the 

 keel. 



Found on the summit of the Rocky Mountains. 



No. 147. C.festiva, D. 

 Tab. W. fig. 71. 



Spicis distigmaticis androgynis, superne pistilliferis subsenis ovatis 

 in capitulum densi aggregatis ; fructibus ovatis oblongis rostratis in 

 apice serrulatis bifidis convexo-planis, squama ovata acutiuscula lon- 

 gioribus. 



Culm six to ten inches high, scabrous, triquetrous, striate, erect, 

 stiff, leafy ; lower leaves shorter, upper ones longer than the culm, 

 flat, striate, rough on the edge ; spikelets about six, androgynous, 

 staminate below, ovate, aggregated into a close head, without bracts ; 

 stigmas two ; fruit ovate, sub-oblong, compressed, convex above, 

 nearly flat below, acuminate, rostrate, split at the mouth and sca- 

 brous on the edge ; pistillate scale ovate ; acutish, tawny, shorter 

 than the fruit ; color of plant light green. 



Found by Dr. Richardson at Bear Lake and on the Rocky 

 Mountains. 



No. 148. C. peiasata, D. 



Tab. W. fig. 72. 



Spicis distigmaticis androgynis, inferne staminiferis subquaternis 



ovato-oblongis cylindraceis subsessilibus approximatis ; fructibus 



lato-lanceolatis utrinque acutis rostratis vel acuminatis ore bifidis 



subalatis, squama lato-ovata subobtusa longioribus. 



