Caricography. 279 
fruit, with a greenish keel. Colour of the plant light green 
and ofa dried appearance. Le 
Flowers in June—grows on the sandy plains in Westfield, 
Mass., where it was found by Mr. E. Davis, principal of the 
academy. 
This is a singular and beautiful species. It considerably 
resembles C. intermedia, Gooden. and Schk. tab. B fig. 7 
especially in the situation of the staminate flowers and spikes. 
Like this too, C. siccata, may be found to be quite variable in 
the number of spikes producing fruit. On the specimens of C. 
intermedia, received from the north of Europe, the fruit and 
scale are ovate; the spikes larger and more numerous, and 
the lowest has a foliaceous, bristly, long bract; the leaves 
are much broader and longer :—the plant grows too in wet 
situations. In these characters it is easily distinguished from 
C siccata. The figure of our plant does not show the usual 
number of spikelets. 
79. C. Davisii. (Mihi.) 
Spicis distinctis; spica staminifera solitaria sessili brevi ; 
spicis fructiferis tristigmaticis, binis vel ternis staminifere ap- 
approximatis ovatis sessilibus paucifloris, sepe una radicali 
iongo-pedunculata ; fructibus globoso-triquetris basin attenu- 
atis rostratis pubescentibus ore obliquo, squame ovate sube- 
qualibus ; culmo decumbente. 
Culm 6—10 inches high, very slender, triquetrous, sea- 
brous above, decumbent; leaves subradical, linear, rough on 
the edge, narrow, nearly flat, carinate, as long or longer than 
the culm, with purple sheaths at the base; bracts ovate at the 
base, lanceolate, the lower one leafy and surpassing the culm ; 
staminate spike single, short, small, sessile, from the bract of 
the highest pistillate spike, with an oblong-acute or lanceo- 
late scale, tawny, white on the edge and green on the keel; 
pistillate spikes two or three near the staminate, sessile, ovate, 
about four-flowered, sometimes a radical one long-peduncu- 
late; stigmas three ; fruit globose, subtriquetrous, tapering at 
the base, rostrate, pubescent, with an oblique orifice sometimes 
slightly bifid; pistillate scale ovate, acute, tawny, white on 
the edge, green on the keel, and nearly equal in length to the 
fruit. Colour of the plant light green. 
Flowers in May ~grows in tufts in open woods on dry hills. 
Williamstown. Named in honour of Mr. E. Davis, Principal 
of the academy in Westfield, Mass. 
