264 PITTONIA. 
looking. The thick shining stem and branehes recall those 
of the Elephant Tree of Cedros, are scarcly of a woody 
texture, but very soft and spongy when cut, abounding in 
milky juiee. The root of the plant is fusiform, soft and 
farinaceous; even the thiek cortical and milky part being 
without any unpleasant taste ; the body of it tender, palatable 
and without lactiferous tissue. 
8. ATRIPLEX DILATATA. Annual, stoutish, ereet or de- 
cumbent, 2—3 feet high: stem and branches almost glabrous, 
foliage and bracts mealy ; leaves of thinnish texture, cuneate- 
obovate, acute, entire, an inch or two long, tapering to a short 
petiole: inflorescence glomerate in all the axils, continued 
io the ends of the branchlets in interrupted bracted spikes : 
fruit flattened, dilated, 3 lines broad, little more than half as 
long, winged at the sides and across the broad truneate sum- 
mit, the wing cleft into several acute segments. 
À new species, most related to A. argentea and A. expansa, 
judging from the habit; but the fruits are flat and their sides 
not appendaged or muricate. 
9. Supa Moguint (Torr. ) = Chenopodina Moquini, Torr. 
Pac. R. Rep. vii. 18: Sueda Torreyana, Wats., Proc. Am. 
Acad. ix. 88. 
10. COTYLEDON LANCEOLATA (Nutt.) Brew. & Wats., Bot. 
Calif. i. 211 (?). Leaves, bracts and segments of the calyx 
all narrower than usual ; possibly a distinct species. A good 
specimen now growing in the garden of the University may 
ultimately remove doubts. 
11. MESEMBRIANTHEMUM ORYSTALLINUM, Linn. Sp. PI. 480. 
Unquestionably indigenous here, as on other of our coast 
islands. Lieut. Pond's specimens, collected in December, 
appear to be only a few weeks old, and exhibit only two or 
three pairs of leaves; but the species is unmistakable. 
