64 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
M. Snodgrassii Rob. (1), 144.—ALBEMmarte IsL.: Cowley 
Bay, bushes 1 ft. and more in height, rare in pumice soil, (no. 
1478); Elizabeth Bay, Snodgrass and Heller; Tagus Cove, 
Snodgrass and Heller. NarsoroucH Ist.: Mangrove Point, 
Snodgrass and Heller. Endemic. 
Sesuvium L. 
S. Edmonstonei Hook. f. (3), 221; Rob. (1), 144.—Bar- 
RINGTON IsL.: common covering rocks along the shore (no. 
1479). Brats Ist.: (no. 1480). Carvers IsL.: common 
on sand beaches, forming bright red patches when seen from a 
distance, (no. 1481). CuLpEppER IsL.: common on the sides 
of cliffs. Duncan Is~.: common among rocks along the 
shore and in occasional patches up to 250 ft. (no. 1482). 
GARDNER Ist. (near Hoop Ist.): Snodgrass and Heller. 
Hoop Ist.: very abundant on the tops of the cliffs at the east 
end of the island (no. 1483). The stems and leaves of this 
plant are usually bright red when it grows in open sunny 
places, but are green with but a small amount of the red color 
when it grows in the shade. Endemic. 
S. Portulacastrum L. Syst. Nat. ed. 10, 1058 (1760) ; Rob. 
(1), 144—Astnepon Isz.: occasional on sand beaches. AL- 
BEMARLE Ist.: Elizabeth Bay, Snodgrass and Heller; Turtle 
Cove, abundant on sand beaches (no. 1484). BARRINGTON 
IsL.: on sand beaches. CHARLES Ist.: forms thick mats on 
sand beaches. It also occurs around the shores of salt lagoons 
where the water is saturated with salt. In such situations the 
leaves are somewhat reduced in size, (no. 1485). CHATHAM 
Ist.: Sappho Cove, common on sand beaches (no. 1486). 
INDEFATIGABLE IsL.: southeast side, common on sand dunes 
(no. 1487). James Ist.: northeast side, on sand_ beaches. 
Seymour Ist., NortH: Snodgrass and Heller. Further distr. 
Soe St Wn SS: /Am:, China: 
Trianthema L. 
T. Portulacastrum L. Sp. Pi. 223 (1753) ; Rob. (1), 144.— 
ALBEMARLE Ist.: Turtle Cove, fairly abundant on sand 
beaches (no. 1488); Villamil, in dry sandy soil in open places 
near sea level (no. 1489). Barrincton Isx.: Snodgrass and 
