54 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



M. Snodgrassii Rob. (1), 144. — Albemarle Isl. : Cowley 

 Bay, bushes 1 ft. and more in height, rare in pumice soil, (no. 

 1478) ; Elizabeth Bay, Snodgrass and Heller; Tagus Cove, 

 Snod grass and Heller. Narborough Isl. : 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). Brattle Isl. : (no. 1480). Charles 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 Isl. : common among rocks along the 

 shore and in occasional patches up to 250 ft. (no. 1482). 

 Gardner Isl. (near Hood Isl.) : Snodgrass and Heller. 

 Hood Isl. : 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. — Abingdon Isl. : occasional on sand beaches. Al- 

 bemarle Isl. : Elizabeth Bay, Snodgrass and Heller; Turtle 

 Cove, abundant on sand beaches (no. 1484). Barrington 

 Isl. : on sand beaches. Charles Isl. : 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 

 Isl.: Sappho Cove, common on sand beaches (no. 1486). 

 Indefatigable Isl. : southeast side, common on sand dunes 

 (no. 1487). James Isl.: northeast side, on sand beaches. 

 Seymour Isl.^ north : Snodgrass and Heller. Further distr. 

 S. U. S., W. Ind., S. Am., China. 



Trianthema L. 



T. Portulacastrum L. Sp. PI. 223 (1753) ; Rob. (1), 144.— 

 Albemarle Isl.: Turtle Cove, fairly abundant on sand 

 beaches (no. 1488) ; Villamil, in dry sandy soil in open places 

 near sea level (no. 1489). Barrington Isl.: Snodgrass and 



