Long, C. R. 1964 21 in appearance than plants of the same species on west facing slopes. Neither Amaranthus brownii nor Schiedes verticellata were collected. September 25, 1964 Necker Island Plant associations observed: 1. Sesbonia - Chenopodium 4. Sesuvium 2. Portulaca - Chenopodium 5. Sesuvium - Portulaca 3. Sesbonia 6. Panicum - Portulaca - Chenopodium The vegetation of Necker Island is quite unique in that many species not found could be expected ie. Sida, Solanum, Ipomoea. These are species found on Nihoa the nearest volcanic island. Despite the building of a helicopter landing pad on the ridge extending east from the 262 foot peak no introduced weed species could be found. The five species reported by the Tanager Expedition were recollected but no additional species could be found. A white flowered P. lutes was discovered.