54 



72. — Carex Pseudo-Cyperus, var. Americana, Hochst Herb. 



Unio Itin. (1837), v. s. Hb. Berol. 

 C. ftcrcata^ Ell. Sk. Bot Car. ii. 55^- 



C. Pseiido-Cyperiis, Schw. and Torr. Monogr. 335 (1825). 

 C. comosa, Boott, Linn. Trans, xx. 117 (1846), v. s. Hb. 



Boott. 

 C. Psetido-Cy perns y var. comosa^ W. Boott, Bot. Cal. 11. 252 



(18S0). 



^ jl. — Carex hystricina, Muhl., var. Dudleyi. 



{7. Psetcdo-Cyperiis X C, hystricina? Dudley, Cayuga FI. 118 



(1886), V. s. Hb. Cornell. 

 Usually taller than the species; spikes longer and slimmer 



to 2)4 in. long), light-colored, all prominently spreading 1 

 or nodding on one side of the culm ; perigynium more ascending, 

 somewhat deeper-toothed, yellower at maturity; scale longer, 

 and prominent. Wethersfield, Conn., Wright ; near Ithaca, N. 

 Y., Dudley; Wisconsin? Lapham. The spikes have much the 

 general aspect of C. Schwcinitzii^ Dewey. 



/ 74. — Carex Grayii, Carey, var. HisriDULA, Gray in herb. 



Perigynium evenly but sparsely hispid. As this is the only 

 instance In which a member of the Section Physocarpse has 

 hairy perigynia, it seems worth while to recognize the variety. 



/ 75. — Carex PaRRYANA, Dewey, var UNICA. 



C. Hallii, Hayden's Rep. 1871, 496, v. s. Hb. Gray. 



Spike single and terminal, or sometimes attended by a small 

 or rudimentary one; perigynium usually broader and more con- 



Haydi 



spicuously beaked ; scales larger. Pleasant Valley, Idahoj 

 Evidently dioecious. 



'je. — Carex TRIBUloides, WahL Kongl Acad. Handl xxiv* 



145 (1803); Fl. Lapp. 250 (1812). 

 C. lagopodioides, Schk, Riedgn Nachtr. 20, f 177 (1806), 

 V. s. Hb. Schk.; Sartw. Exsicc. No. 42 (1848), v. s.; Boott, 

 111. t 370(1862). 



C scoparia, var lagopodioides, Torr. Monogr. 394 (1836). 

 C, lagopodiodes, var, composita, Oiney, Exsicc fasc. ii. No. 10 

 (1871), v. s., and forma glomcrata, 1. c. fasc. i. No. 6, v.s. 

 This species is a tall and stiff plant, usually_ three feet or more 



high, with a stout head of long and ascending green spikes. I 



