140 Caricography. 



One derives from these exhibitions new ideas respecting the 

 riches of the solar beam, and new impressions of the boundless 

 resources which nature has in this beam for adorning and diver- 

 sifying her works. Nor does this class of experiments seem un- 

 worthy the attention and study of the painter, who may find here 

 combinations of colors far richer and more superb than any which 

 his pencil can paint. Finally, the philosopher and the mathe- 

 matician will find ample scope for their powers, in developing 

 the laws which govern these endless varieties of figure and color. 



Art, XIII. — Caricography ; by Prof. C. Dewey. 



(Appendix, continued from Vol. XLiir, p. 92.) 



No. 177. Carex Mitchelliana, Curtis. Tab, Dd, fig. 98, 



Spicis binis vel ternis distigmaticis cylindraceis subremotis 



, oblongis subdensifloris pedunculatis, superiore androgyna inferne 



staminifera, inferioribus pistilliferis brevi-vaginatis suberectis ; 



fructibus ovatis acutis brevi-rostratis glabris ore indiviso, squama 



ovato-cuspidata paulo brevioribus vel subsequantibus. 



Culm 15-20 inches high, erect, acutely 3-sided, subscabrous 

 above, leafy towards the base ; leaves linear-lanceolate, flat, 

 nerved, smooth, shorter than the culm ; spikes 2-3, pedicellate, 

 an inch long, cylindric, not densely flowered, the upper one sta- 

 minate below, and sometimes above also, the lower with a long 

 leafy bract scarcely sheathing the peduncle ; staminate scale ob- 

 long lanceolate ; stigmas two ; fruit ovate, acutish, short-beaked, 

 somewhat convex, with a scale ovate or oblong-cuspidate, and 

 about as long or longer than the fruit. 



Resembles C, gynandra, Schw., and belongs in the section 

 with C. crinita ; flowers in May. Discovered by Rev. Moses A. 

 Curtis, in wet places in Chatham County, N. C. in 1835, and 

 first described by him in this Journal, Vol. xliv, p. 84. 



The following variety of another species was also described 

 by Mr. Curtis on the same page. 



C. verrucosa, Muh. C. glaucescens, Ell. var. androgyna, Curtis. 

 Tab. Dd, fig. 99. 



Spicis longo-cylindraceis densifioris (4-7) erectis tristigmaticis, 

 superiore androgyna inferne staminifera ; culmo 3-4 pedali longo- 

 foliaceis bracteisque, omnino glaucis. 



