Islaixd, No. 3289 » 3291» Heported by Bennett as B# h irsute * 
Collected by Dixon. 
Fisonia gcandis H. Br. 
Tree about 4 meters high> north shore. South Island, 
No. 3280 , A small grove was observed on the north end of 
Long Island, This species forms a forest association on 
many central Pacific atolls where the aboriginal vegetation 
survives. The clearing necessary for guano raining and the 
planting of Cocos plantations may have destroyed any former 
extensive Pisonia forests on Caroline Atoll, The presence 
of commercial quantities of guano also points to a pre¬ 
existing stand of Pisonia if the laying doun of such depos¬ 
its is indeed accomplished under Pisonia stands (Posberg, 
1937 )• Collected by Dixon. 
Portiilacaoeae 
PortxfLaoa lutea Sol, 
Stems clumped, flowers yellow, islet northeast of 
South Island, No, 3223? olmps 1.5 decimeters hi^, common, 
in open coral sand and rubble, second islet south of Nake Is¬ 
land, No. 3231 ? common, Nake Island, No, 3237? in gravel above 
lagoonshore, common. Long Island (north end^. No. 3255? fourth 
islet north of Bird Island, No. 3257? common in exposed area. 
South Island, No, 3292. Collected by Dixon, A second species, 
probably P, oleracea, was recognized by Dixon, This species 
Was not seen in 1965* Jbr P, lutea see 5h.g. 2. — 
Zygophyllaceae 
Tribulus oistoides L, 
In open area, sand, among Toumefortia shrubs, stems to 
,8 meters long. Long Island, No, 3245* This species is pro¬ 
bably distributed by sea birds but was not seen elsewhere on 
the atoll. A new reooed for the atoll, 
Siraaroubaoeae 
Suriana maritima L. 
