170 MR. NUTTALL'S DESCRIPTIONS OF NEW 



Hab. Witli the above, which it much resembles ; it is, however, a much stouter 

 plant. The leaves about two inches long and two or three lines wide. 



§. *G0MPH0THECA. — Dioicous. Annual ; stem naked, verticillately branched and 

 very divaricate. Involucrum small, about five-toothed, five-flowered ; without awns. 



0. *CtLandulosa. Leaves all radical, roundish and pilose ; branches verticillate, branchlets very numerous 

 and divaricate, the ultimate ones and pedicels capillary ; flowers exserted, pubescent. 



Stems and branches about a foot high; leaves thick and fleshy, green, but 

 pubescent, particularly along the under nerves, on longish petioles, about half 

 an inch wide and the same in length; stem simple and naked, dividing 

 verticillately a few inches from the root ; every branchlct and pedicel arising from 

 a small three-cleft involucrum ; branches and pedicels dark purple ; perianth very 

 pubescent; the segments linear-lanceolate, and acute; the aohenium, as in some 

 Polygonums, is only two-sided, or elliptic, and compressed when ripe; branches 

 and peduncles covered with pedicellate, viscid glands; involucrum small and 

 smooth. 



Hab. Rocky Mountains of Upper California. 



*STENOGONUM.t 



Monoicous. Involucrum none. Flowers naked, in axillary clusters. Perianth 

 triano-ular, six- cleft. Stamens six? Styles minute, with capitate stigmas. Achenium 

 conic, triangular, the angles sharp and salient, with a margin. A small, smooth, 

 rather succulent annual plant of the Rocky Mountains, dichotomously subdivided 

 and branched ; leaves entire, opposite or ternate ; flowers yellow, in axillary and 

 terminal clusters, subtended by small, similar, leafy bractes. In the want of 

 involucrum, approaching NemacauUs, but the habit, flower and achenium are very 

 distinct. 



S, *SALsuGiNosuM. A Small annual, about two to three inches high. Leaves linear, spathulate, about an 

 inch long, one to two lines wide. Flowers in sessile clusters, in the forks, and at the extremities of 

 the branches, subtended by an irregular circle of smaller leaves ; perianth greenish, the border 

 segments yellow ; no stamens in the female flowers ; no germs in the male flowers ; embryo inclined 

 to one side of the farinaceous perisperm ; the cotyledons oval and flat ; the radicle elongated, and 

 curved in a contrary direction to the base of the nub. 



Hab. Bare saline hills of the Colorado of the West, in the Rocky Mountains. 

 F lowering in June and July. (Nuttall.) 



t III allusion to the sharp and slender angles of the achenium. 



