Additional Records to the Flora of Johnston Island 
Jan Newhouse 1 
Previous accounts ofjohnston Island plants 
have been from the field notes of Edwin H. 
Bryan Jr. published by Christophersen (1931) 
and additional records published by Fosberg 
(1949). 
In January, 1954, the United States Air 
Force provided the author with transporta- 
tion and quarters for a brief study of the 
atoll. The following list of new records to the 
flora is one result of this visit. The list is of 
two parts: (1) Plants growing without ap- 
parent cultivation and of which specimens 
were collected, (2) plants which were noted 
in dependents’ homes and gardens. All deter- 
minations of plants not under cultivation were 
made by Dr. Harold St. John of the Univer- 
sity of Hawaii. No specimens of plants under 
cultivation were taken from the sparse popu- 
lation maintained perhaps only by daily water- 
ing. A mint, an araceous plant and ' ’mother- 
in-law’s tongue” are not included for lack of 
more specific field determination. 
PLANTS NOT UNDER CULTIVATION 
Acacia farnesiana (L.) Willd. 
Amaranthus dubius Mart. 
Araucaria excelsa (Lamb.) R. Br. 
Calophyllum inophyllum L. 
Catharanthus roseus (L.) G. Don 
Chenopodium murale L. 
Coccoloba uvifera (L.) Jacq. 
1 Department of Botany, University of Hawaii. 
Manuscript received April 29, 1954. 
Cordyline terminalis (L.) Kunth 
Eragrostis amabilis (L.) Wight & Arn. 
Erigeron bonariensis L. 
Euphorbia hirta L. 
Euphorbia glomerifera (Millsp.) L. C. 
Wheeler 
Hibiscus tiliaceus L. 
Ipomoea pes-caprae (L.) Sweet 
Nicotiana glauca Graham 
Pedilanthus tithymaloides (L.) Poit. 
Sesuvium portulacastrum (L.) L. 
Solanum lycopersicum L. 
Sporobolus virginicus (L.) Kunth 
Thevetia peruviana (Pers.) Schumann 
PLANTS UNDER CULTIVATION 
Allium fistulosum L. 
Allium sp. 
Alpinia sp. 
Anthurium andraeanum Lind. 
Bougainvillea sp. 
Capsicum frutescens L. 
Carica papaya L. 
Citrullus vulgaris Schrad. 
Citrus aurantifolia (Christmann) Swingle 
Codiaeum variegatum (L.) Bl. var. pictum 
(Lodd.) Muel.-Arg. 
Euphorbia pulcherrima Willd. 
Gardenia sp. 
Merremia tuberosa (L.) Rendle 
Lobularia maritima (L.) Desv. 
Mangifera indica L. 
Pandanus sp. 
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