476 PHANEROGAMOUS PLANTS. 



Hab. Upper Sacramento, California, in exsiccated places. — Steudel 

 has strangely omitted the earlier name of this species, although he 

 has quoted, many times, the work in which it is described. There 

 can be no doubt as to his I. koilolepis being identical with our plant, 

 for he quotes No. 415 of Drummond's New Orleans collection, which 

 is the same from which our original description was drawn. 



2. ISOLEPIS PYGM2EA, Kunth. 



Yar. Californica : culmis dense cosspitosis; spica brevi-ovata; involucro 

 monophyllo sjncam plerurnque vix cequante; squamis acutiusculis ; 

 achenio late obovato subtriangulato, angulis prominulw. 



Hab. Lower Sacramento, California. — Culms forming very dense 

 tufts, 2 or 3 inches high, spreading and somewhat curved, slender 

 and wiry. Leaves mostly solitary and very short. Spikes solitary, 

 about 2 lines long, 12 to 15 flowered; involucre ovate and clasping 

 at the base, tapering to a subulate point, which rarely exceeds the 

 spike, and is mostly about half its length. Scales broadly ovate, 

 rather acute, boat>shaped and keeled, not mucronate, the sides 

 brownish red, keel and margins whitish. Stamens mostly 3, but 

 sometimes 2. Style 3-cleft. Achenium slightly mucronate, com- 

 pressed 3-sided, under a strong lens appearing striate, with extremely 

 minute elevated dots, dark brown; the back flattish, the front very 

 convex and carinately angular; the lateral angles also acute. This 

 species does not agree altogether with any Isolepis described by Kunth 

 or Steudel, but it seems to be nearest I. pygmcea. 



C A B, E X, Linn. 



The species had not been elaborated and written out. The follow- 

 ing list, drawn up by S. T. Olney, Esq., of Providence, gives the 

 names of the species collected as far as can now be ascertained. 



Carex Brongniartii, Kunth. Walla-Walla. 

 C stipata, Muhl. Walla- Walla. 



