310 BOTANY. 



4-6-aDgled ; radical leaves spatulate or rounded, the true cauline ones smaU, 

 resembling dark-scarious stipules, the axillary leaves in pairs or fascicled, 

 oblong-linear and lanceolate; pedicels filiform, ^-1' long, widely spreading, 

 involucres short-campanulate or hemispherical, minutely glandular or almost 

 smooth, sohtary, many-flowered, 5-toothed, (the teeth broad and short,) 

 becoming dilated in fruit, but scarcely equaling the included bracts, which 

 are thin, broadly spatulate, and woolly below ; proper bractlets minute and 

 capillary, villous-plumose, often wanting ; flowers very obtuse at base, minutely 

 glandular, scarcely 1" long, on short pedicels not exceeding the bracts, rose- 

 colored or white, deeply 5-parted, the outer segments ovate, concave, the 

 inner at length longer, lanceolate-oblong; ovary glabrous ; achenium sharply 

 triangular.— CaUfornia and Nevada ; Southern Utah, (Palmer.) Rather fre- 

 quent in the dry valleys and lower canons of Western Nevada, as far east as 

 Monitor Valley, and also found on Stansbury Island ; 4-5,000 feet altitude ; 

 May-September. (1,039.) 



E. divaricatum, and E. salsuginosum, Hook., reported as collected by 

 Geyer and Nuttall, in " Utah," on the Upper Colorado, were probably found 

 on the upper branches of Grreen River in Wyoming Territory. 



Eeiogonum (Foliosa) speegulinum. Gray. T. Sf G., I. c, p. 189. 

 Annual, hirsute at base, very slender, with elongated internodes, leafy ; 

 leaves hirsute and glandular, green on both sides, the cauline opposite or 

 verticillate (the lowest only alternate) and fascicled in the axils, narrowly 

 linear, the margins sometimes revolute ; panicle loose and spreading, with 

 smooth very slender capillary pedicels rarely 1' long ; involucres glabrous, 

 very small, i'' long, 4-cleft, 1-flowered with the rudiment of a second ; 

 bractlets none ; calyx white, 1-1^" long, with a slightly pilose very short 

 base, petaloid, the segments equal, cuneate-oblong, the outer obtuse or 

 retuse, the inner truncate at the apex and more or less erose-tridentate ; 

 ovary glabrous ; achenium lenticular. — California, Western Nevada, (Ander- 

 son ; Bloomer.) 



OxYTHECA^ DENDEOiDEA, Nutt. T. 4" <?•, ^- c., p. 190. Branches very 

 numerous in a loose and spreading cyme ; leaves only mucronate, the radical 

 ones lanceolate or linear-lanceolate, slightly hirsute, the cauline leaves 



' OXYTHECA, Nutt. Involucre few-flowered, cup-shaped, 4-cleft, the lobes terminated by slender 

 awns. Flowers, bractlets, etc., as in Eriogonum. Achenium lenticular. Radicle long, accumbent to the 

 orbicular cotyledons. — Divaricately many-branched annuals, loosely flowered, the slender branches 

 sprinkled here and there with small pedicellate glands. T. & 6., ]. c. 



