OP ARTS AND SCIENCES. 129 



long), strongly triquetrous, the sides at maturity cross-wrinkled and 

 often concave, much contracted into a stipitate base, very finely 

 many-nerved (rarely the nerves obsolete below), tightly enclosing 

 the minutely punctate perigynium, the very short orifice entire. A 

 singular plant. The culms remain a year after fruiting. — California: 

 Yosemite, Torrey 544; Ukiah, Bolander 39 ; Big Trees, Brewer 1635 

 and 2306; Plumas Co., Mrs. Ames; Duffield's Ranch, Biyelow ; 

 Alamandon, S. W. Oregon, Howell. 



Section X. LAMPROCHL^N^, Drejer, Syrab. Car. 10. 

 {DeJlexorMrpce, Bailey, Coult. Man. 373, in part.) Perigynium smooth 

 (rarely minutely serrate on the margins), firm in texture or even 

 horny, mostly glossy or shining brown or black, lightly nerved or 

 nerveless, bearing a short beak ; scales mostly obtuse with hyaline 

 margins ; spike one (except C. pedata, O. obesa, and 0. Schaffneri)^ 

 small, staminate above; stigmas mostly three. — Small species, mostly 

 boreal or alpine. 



A. Pulicares, Tuckerman, Enum. Meth. 7. Perigynium spindle-shaped or nar- 

 rowly ovate, stipitate, deflexed or widely spreading at full maturity. 



211. Carex PrRENAiCA, Wahl. Kongl. Acad. Handl. xxiv. 139. 

 C. micropoda, C. A. Meyer, Cyp. Nov. 210, t. 6. 

 Callistachys Pyrenaica, Heuffl. Flora, 1844, 528. 



Colorado, Hall & Harbour 608, Vasey 590, Brandegee, Englemann ; 

 Utah, Uintas, Watson 1218; S. E. Oregon, Gusick ; Alaska, Meyer. 

 Europe. 



212. Carex nigricans, C. A. Meyer, Cyp. Nov. t. 7. 



Colorado, Hall &, Harbour 609, Vasey; Utah, Bear River Canon, 

 Watson 1217; Mt. Shasta, Calif., Brewer 1379; Oregon, Hall 569, 

 Howell, Henderson ; Alaska, Chamisso. Adjacent Asia. 



213. Carex Schaffneri, Boeckeler, Flora, 1878, 39. 



" Glaucous green, shining : culms usually two, erect, three to six 

 inches high, filiform, compressed-triangular, striate, smooth, very leafy 

 at the base : leaves crowded and spreading, rigid, much shorter than 

 the culm (one to one and a half inches long), twice longer than the 

 last year's sheathing fascicles, setaceous, straight or slightly curved, 

 canaliculate, margins above serrulate : spikes two, androgynous (proba- 

 bly staminate at the top), unequal, crowded at the top of the culm, 

 chestnut-colored, oblong-ovate or ovate, acutish, 10-15-flowered (three 

 to four lines long) : bracts short, scale-like and cuspidate : scales 

 broadly ovate, obtuse, broadly amplectant at the base, the keel green, 



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