OF ARTS AND SCIENCES. 137 



Sedum variegatum. Glabrous, slender ; stems simple, from un- 

 derground rootstocks (?), erect, an inch or two high : radical leaves 

 none ; cauline lanceolate with a broad base, two lines long or less : 

 flowers few (three to six) in a close cyme : sepals broadly ovate, acute, 

 short and purplish : petals twice as long (about two lines), ovate-lan- 

 ceolate, yellowish with purple midvein : stamens 10, included. — A 

 diminutive species, sent by D. Cleveland, from San Diego. 



■^ CEnothkra (Sph^rostigsia) Gdadalupensis. a low erect 

 annual (three inches high), branching, finely pubescent: leaves oblan- 

 ceolate, sessile or the lowest attenuate to a petiole, obtuse or acutish, 

 obscurely smuate-toothed, an inch long: flowers few, axillary, yellow, 

 very small : calyx-tube obconical, a line long ; the lobes as long, close 

 in the bud : capsule oblong-pyramidalj nearly straight, strongly angled, 

 half an inch long : seeds brown, smooth. — Found by Dr. E. Palmer 

 ou Guadalupe Island ; a peculiar species in the section as respects its 

 capsule, in which it most resembles (E. andina. 



ir Mentzelia dispersa. a slender annual, usually about a foot 

 high ; leaves narrowly lanceolate, sinuate-toothed or sometimes entire, 

 rarely pinnatifid, the uppermost often ovate : flowers small, mostly ap- 

 proximate near the ends of the branches ; calyx-lobes a line long, little 

 shorter than the five spatulate or obovate petals : filaments not dilated : 

 capsule narrowly linear-clavate, six to nine lines long : seeds very 

 often in a singleVow, angular and somewhat rhombohedral, more or less 

 grooved upon the angles, very nearly smooth, half a line long. — M. 

 alhicaulis, var. integrlfoUa, Watson, Bot. King's Rep. 114. From 

 Washington Territory to Colorado and southward, frequent ; Yose- 

 mite Valley, Bolander; Guadalupe Island, Palmer. Much resembling 

 31. albicaulis, Dough, with which it has been confounded almost from 

 the first, but wdiich is distinguished by its more pinnatifid leaves and 

 slightly larger flowers, and especially by its rather strongly tubercu- 

 late seeds, irregularly angled with obtuse margins. The rarer allied 

 species 31. micrantha differs in its more leafy habit and small ovate 

 leaves, and in its shorter, broader and few-seeded capsules, the seeds a 

 line long. 

 ^ CucuRBiTA PALMATA. Canescent with a short rough pubes- 

 cence, which is appressed upon the leaves ; stems leafy : leaves thick, 

 cordate, two or three inches broad, usually exceeding the petioles, pal- 

 mately o-cleft to the middle with lanceolate acuminate lobes, which are 

 often obtusely toothed near the base : flowers three inches long, on 

 stout pedicels : calyx-tube an inch long, the lanceolate teeth three 

 lines long or more : fruit globose ; seeds five lines long, rather smaller 



