OF ARTS AND SCIENCES. 125 



broad, finely pubescent ; carpels six to ten, about equalling the sbort 

 conical summit of the axis. — Collected by Dr. E. Palmer on the 

 cliffs of Guadalupe Island. An interesting discovery as confirming 

 the American habitat of the genus. 



Malvastrum Coulteri. Perennial, somewhat pubescent, with 

 slender branches : leaves small, ovate or somewhat cordate, 3-5-lobed, 

 acutely toothed, equalling or exceeding the slender petioles; flowers 

 small, in a rather loose raceme : calyx-lobes acuminate : petals rose- 

 colored, 4 or 5 lines long : carpels rounded, less than a line in diameter, ' 

 with a thin horizontal oblong projection inward at base, very strongly 

 reticulated, pubescent below. — Collected probably in South-eastern 

 California by Coulter (n. 96), and in the valley of the Gila by Schott, 

 on the Mexican Boundary survey. Very peculiar in the character of 

 its carpels. 



/ Sph^ralcea sulphurea. Perennial, resembling S. Emoryi in 

 habit, but more tomentose, and the inflorescence usually much more 

 paniculate and diffuse : leaves ovate, two to four inches long, exceed- 

 ing the petioles, more or less distinctly 3-5-lobed, acutish, crenately 

 toothed, cordate to abruptly cuneate at base : flowers sulphur-yellow or 

 whitish, usually tinged with pink : calyx two or three lines long, with 

 broad acute lobes : petals twice longer, villous at the base of the claw : 

 fruit globose ; carpels semicircular, a line and a half long, reticulate on 

 the sides. — On Guadalupe Island, Dr. E. Palmer ; growing abun- 

 dantly among rocks, in large bunches three feet high. 



^ Abdtilon Newbkrryi. AVoody at base, often four to five feet 

 high, densely tomentose ; branches short and stout : leaves thick, 

 oblong-lanceolate, acutish, cordate at base, one or two inches long, on 

 short petioles : pedicels fascicled in the axils, much shorter than the 

 leaves : flowers deep yellow, three lines long : carpels about eight, 

 somewhat membranaceous, three lines long, narrower but rounded 

 above, 2-valved to the base, 3-seeded. — Sphceralcea incana, Gray, 

 Bot. Ives's Exp. 8. At Canebrake Caiion on the Lower Colorado by 

 Newberry, on the Lower Gila by Emory, and in the Big Caiion of the 

 Tantillas Mountains, below San Diego, by Palmer. 



/ Tribulus Californicus. Small, hoary-pubescent and hairy: 

 leaflets about six pairs, oblong-elliptical, two or three lines long : 

 flowers yellow, very small, the petals little longer than the narrow 

 sepals : fruit deeply o-lobed, two lines or less in diameter, sliort- 

 beaked ; the carpels with four or five stout obtuse tubercles upon the 

 back ; pedicels shorter than the leaves. — Collected by Dr. E. Palmer, 

 in Lower California (1870), on the eastern side of the peninsula. 



