mf 



35 



» 



C. Smithii, Porter; Oiney, Exsicc. fasc i. No. 28 (1871) v. s. 



Usually taller, olive-green ; leaves smooth throughout ; 



sheaths hirsute or puberulent ; spikes longer, more scattered, the 



lower one or two usually short-peduncled ; perigynium globular 



1^ or nearly so, somewhat turgid, divaricate; scales, both pistillate 



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and staminate, more obtuse and browner. The squarrose and fat 

 perigynia give the spikes a peculiarly dense aspect which at once 

 distinguishes this plant Pennsylvania and New Jersey to N. 

 Carolina ; Arkansas, Hasse. 



^ Var HIRSUTA. 



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C. hirsiita, Willd. Sp. PL iv. 252 (1805); Schk. f. 172 (1806) 



V- s. Hb. Schk-. 

 C. triceps, Boott, 111. t 128 (1858). 



A stouter and taller plant, as a rule, than either the type or 

 the previous variety, green ; leaves conspicuously hirsute ; spikes 

 usually larger and scales longer and sharper. The common 

 - ^ northern form. 



42 — Carex miliaris, Michx. Fl. Bor.-Am. ii. 174 (1803), v. s. 



Hb. Michx ; Boott, 111. t. 200, f 2 (1858); Olney, Exsica 

 fasc. I, No. 16 (1871), v. s. 



C. saxatilis, L. var. miliaris, Bailey, Bot Gaz. ix. 120 (1884). 



This puzzling species has been poorly defined, largely because 

 two or three different plants have been confounded. It was for 

 this reason that I was led to refer it to Carex saxatilis, with 

 which it has no immediate affinity. The material is yet scant, 

 but three forms of the plant appear to be clearly defined, and a 

 fourth one is referred here provisionally. Whatever future ob- 

 servers may decide as to the merits of the varieties I propose, the 

 disposition suggested cannot fail to make the species better 

 known. 



Culm very slender but erect (12 to 18 in. high), smooth or 

 slightly rough above on the angles ; leaves narrow, often almost 

 filiform, rough on the edges, mostly shorter than the culm ; 

 staminate spikes one or two, elevated an inch or more from the 

 upper pistillate spike, very narrow, an inch or less long ; pistillate 

 spikes one to three, the upper one sessile and the lower very 

 short-stalked, small (^ in. or less long), the lowest subtended by 

 a bract which usually exceeds it ; perigynium very small, broadly 



