30 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
tufaceous soil in open sunny places on the lower parts (no. 
1196). CHarLEs IsL.: rare at 850 ft., common in tufaceous 
soil at 1200 ft., (nos. 1197-1198). CuHatuam Ist.: north 
side, Baur. INDEFATIGABLE IsL.: northwest side, Andersson. 
JamEs Ist.: James Bay, Snodgrass and Heller. Further distr. 
Mex., W. Ind., S. Am. 
Aristida L. 
A. divulsa Anderss. (1), 143, and (2), 49; Rob. (1), 116.— 
ABINGDON Ist.: Snodgrass and Heller. BiNDLoE Ist.: Baur. 
CuHaTHAM Ist.: Sappho Cove, occasional in bunches on the 
recent lava in the vicinity of the cove, (no. 1200). James IsL.: 
James Bay, common in lava crevices near the shore (no. 1199). 
Endemic. 
A. repens Trin. Mém. Acad. Pétersb. ser. VI. I. 87 (1831) ; 
Rob. (1), 117.—James Ist.: Douglas. Endemic. 
A. subspicata Trin. & Rupr. Mém. Acad. Pétersb. ser. VI. 
I. 125 (1842); Rob. (1), 117,—Axsinepon IsL.: common in 
lava crevices in the vicinity of the shore and also sparingly at 
1100 ft. (nos. 1201-1203). ALBEMARLE IsL.: Cowley Bay, 
common in soil of pumiceous origin at 1000 ft. (no. 1207) ; 
Elizabeth Bay, Snodgrass and Heller; Iguana Cove, common 
on the side of the cliffs above the cove, also common in open 
places around 300 ft., (no. 1206); Tagus Cove, common in 
open country near the shore and around 1000 ft. (no. 1208) ; 
Villamil, common in lava crevices near the shore (nos. 1204- 
1205). Barrtneton Isi.: occasional in loose soil among 
masses of lava (no. 1210). BrnpLor IsL.: common near the 
shore and on the crests of tufa ridges in the interior of the 
island (no. 1211). BrattiLe Ist.: (no. 1212). CHARLES 
Ist.: abundant at 850 ft., occasional at 1750 ft., (nos. 1213, 
1214, 1216, 1217); Cormorant Bay, occasional in lava crev- 
ices (no. 1215). CHatTHAmM Ist.: Basso Point, occasional on 
lava and in open places in the dry region where the soil is very 
loose in texture (no. 1218). GaARpNER Ist. (near Hoop 
IsL.) : common everywhere (no. 1219). Hoop Ist. : occasional 
among rocks (no. 1220). INDEFATIGABLE Ist.: Academy 
Bay, abundant in open places in the vegetation on the lower 
parts (no. 1221); north side, abundant in ashy soil on the 
