Vor. IJ STEWART—BOTANY OF THE GALAPAGOS ISLANDS Lt? 
entirely shut off from the action of the southeast swell. In 
regard to the distribution of mangroves Schimper, Pflanzen- 
geographie, 437, says: “Within the tropics its distribution 
nearly agrees with that of the rain forests. The mangrove is 
absent or poorly developed on coasts the inland vegetation of 
which possesses a xerophilous character, except where, as at 
the mouth of the Indus and other large rivers, there is a con- 
siderable freshening of the sea water.’’ The vegetation of the 
interior, along the north shore of this island, is xerophilous in 
the extreme, and with the exception of a few showers in the 
spring and early summer no rain ever falls. JAmeEs IsL.: com- 
mon in swamps on the south shore, occasional on the north 
shore. NARBOROUGH IsL.: forming large swamps of low trees 
around the quiet shores of a shallow bay on the northeast side, 
common at Mangrove Pt. Tower IsL.: a small patch on the 
shore of the crater lake near the center of the island. No 
mangroves occur on the shores of this island, (no. 3023). 
Epiphytic plants, other than marine algae, do not attach 
themselves to the mangrove trees, although it is often the case 
that non-halophytic plants, only a short distance away, are 
heavily covered with lichens. Seedling plants are seldom seen 
underneath mangrove trees the roots of which are exposed to 
the action of sea water between tides, the reason for this being 
that the embryo plants are carried away before they have time 
to take root. Further distr. general on tropical shores. 
MYRTACEAE 
Eugenia L. 
E. Jambos L. Sp. Pl. 470 (1753).—Cuatuam Ist.: Wreck 
Bay, trees in gardens, introduced, (no. 3034). Widely dis- 
tributed in tropical regions. 
Psidium L. 
P. galapageium Hook. f. (3), 224; Rob. (1), 182.—Asinc- 
pon Ist.: occasional small trees, 500-1000 ft., on the south- 
west side of the island. On the south and southeast sides the 
species apparently does not occur below 1000 ft., (no. 3030). 
ALBEMARLE Ist.: Banks Bay, at 2300 ft., according to F. X. 
Williams; Cowley Bay, low bushes at 1250 ft. At 2000 ft. 
