Introduced grass found mainly on the west side of the island. Probably 
introduced during the guano mining period. 
Native grass confined to the highly saline guano soils of raised islets 
in the lagoon and low normally dry lagoon bottoms. Often associated 
with Sesuvium and Portulaca . Large areas covered with small, young 
clumps suggesting periodic inundation of low former lagoon areaa. 
Common over the island and in sandy soils along the west 3 hore. Very 
vigorous clumps are scattered at the edge of the lagoon where runoff 
flows over hardpan and into the lagoon. Such clumps always show a 
heavy salty coating of stems and leaves. 
Planted on the island during the guano rainimg period. Aorial photo¬ 
graphs of WW II vintage show some living trees but in very dry condi¬ 
tion. Only dry remains were evident in 1964* 
Fourteen plants of this species were found growing on the west 
side of a small guano pile of the mid north section in June 1964* 
Several sheets were collected. In October of 1964 the exact site 
was revisited. A few dried stems were found. This species is usually 
found on islands which have a higher rainfall and more verdant 
vegetation. The location and condition ie, not spreading suggests 
that this species was introduced. 
Common over the island, an evident pioneer on wave washed sand 
beaches. This is a white flowered form of the taxon probably referable 
to B. repons L. 
Succulent herb found in low former lagoon flats and on top of 
raised islets in the lagoon. Found also on the NE rim in sand over 
hardpan. Usually associated with Eragrostis whitne.yi and Portulaca . 
No seedlings wore found in a thorough search of the mat surrounding 
the lagoon and in open sites with favorable conditions. Sprigs of 
this species are used in rudimentary nest sites of the bluefaced 
booby often found nesting at the flat edge of the lagoon. After initial 
introduction to an island the mat probably forms very quickly due in 
part to the habit of this bird in snipping off sprigs to place near 
the oggs. Vegetative propagation is apparently the most important 
mode of reproduction. The variety griseua confined to the Phoenix and 
Line islands is somewhat variable as to color of flower and size of 
stems and leaves. 
Common over the island in sandy soil. The guano mining may have 
stripped large areas of a Portulaca dominated association from the guano 
soil areas of the N. portion of the island. 
• Confined to the guano mining area on the HB side growing on 
Sida, Lepturus and Boerhavia . Tho range suggests that this species 
may have been introduced although it is native on the other dry islands 
of the Phoenix and Line Groups. 
An introduced weed found in 1924 " — about the dup-up guano 
field, —". Not found in 1964- 
Found on the N¥ side of the island in sandy soils on the sides 
of depressions. Those are probably formed as the res ult of storm 
action depositing coral rubble in high waverows later covered with 
