92 BOTANY. 



Spirantiiis cernoa, Rich. Near Pit river (August) and McCumber's (July.) 



Platantiie a leucostaciiys, Lindl. Gen. &Sp. Orch. p 288. Canoe creek, California; August 1. 



Platantiiera stricta, Lindl. I. c. Crater pass, Cascade mountains; September 1. 



IRIDACE.E. 



Iris h.ejiatopiiylla, FischJ ; Hook. Flor. Bor.-Amer. 2, £>. 20G. McCumber's. 

 Iris macrosipiion, Torr. in Whipple's report. Sonoma, California ; February. 

 Slsyriiynciiium grandiflorum, Dougl. in Bot . Beg. t. 1364. Locality not recorded. 

 Sisyrhynchium Bermudiana, Linn.; Torr. Ft. N. York 2, p. 291. McCumber's. 



JUNCACE.E. 



Luzula campestris, DC. Fl. Franc. %,p. 161. McCumber's, northern California. 



Luzula parviflora, Desv. Jour. Bot. 1, pj. 144. Crater pass, Cascade mountains ; altitude 

 6,500 feet ; September 1. 



Juncus castaneus, Smith; var. sepalis capsulam superantibus. Crater pass, Cascade moun- 

 tains, 0. T. 



Juncus bufonius, Linn. Fort Dalles, 0. T. ; September. 



Juncus tenuis, Willd. Sp. 2, p. 214. McCumber's, California. 



CYPERACEiE. 



Carex lanuginosa, Michx. Fl. 2, p. 175. McCumber's, California. 



Carex cespitosa, Linn. Crater pass, Cascade mountains, September ; altitude of 6,700 feet. 



Carex pyrenaica, Walil. With the last. Differs from the ordinary state of the plant in 

 being apparently dioecious No male flowers were found in the specimens. It is a rare species 

 in North America. 



Jcirpus lacustris, Linn. Extremely abundant, covering immense areas in the Sacramento 

 valley, Klamath basin, and on the Columbia. The Tide of the Mexicans. 



GRAMINE2E. 



Alopecurus geniculates, var. aristulatus, Torr. Fl. N. St. p. 97. Klamath marshes ; August. 



Beckmannia cruciformis, Host. McCumber's. 



Festuca scabrella, Torr. in Hook. Fl. Bor.-Am. 2, p. 252, t. 233. This grass is abundant 

 over all the Des Chutes and Klamath basins, and on the Cascade mountains, and is the famous 

 "bunch grass" of the emigrants. 



Polypogon, (Sp. nov.?) McCumber's and Pit river. This is not a very rare grass in Cali- 

 fornia ; it has the habit of P. Monspeliense, but differs from the genus in the glumes being scarely 

 awned, and in the rudimentary upper palea. 



Elymus arenarius, Linn. Banks of Pit river, and in many other parts of California. Some- 

 times eight feet in height ; so high that, riding through it, it reached to the top of our heads 

 while seated on our horses. It grows in all parts of California where there are deserted Indian 

 lodges, and is, therefore, called by the inhabitants " rancheria grass." The seed is threshed 

 out, and eaten by the Digger Indians. 



Hordeuji jubatum, Linn. Rhettlake, and throughout northern California and Oregon. 



