C.R. Long 
1964 
. 
Addenda to the Report of C. D. Hackman, February - March ATF 1964 
Plants. \ 
I 
Enderbury Island 
iebruary 27, 19o4, Sida sp. - Sida iallax Walp. or close. The Sida specimens 
collected from the Rioenix Islands are partially indistinguishable from 
Sida cordifolia L. and Sida fallax Walp. A nomenclatorial change or a 
new taxa may be indicated. 
Cordia sp. - probably Cordia subsordata Lam. but possible Cordia sebestena L. 
Dodder sp. - Cassytha filiformis L. s 
February 28, 1964 - "grass is quite small and easily overlooked" - 
Eragrostis whitneyi Fosb. var. 
Canton Island 
March 2, 1964 - Scaevola taccada or Scaevola frutescens (Mill.) Krause for Scaevola 
sp. The former name is the oldest which may be applied to material commonly called 
frutescens by most authors. However, the Scaevola in the Phoenix and Line Islands 
varies from the Scaevola found to the north and new taxa are indicated with the 
proper nomenclatorial changes.-" several clumps of the species of grass we had 
discovered near the lagoon on Enderbury"- Eragrostis whitneyi Fosb. var. There are 
two varieties of this species. 
Jarvis Island 
March 14, 1964 
Sida sp.- Sida fallax Walp. - see above February 27 note 
Boerhaavia sp. -B . diffusa L. var. tetrandra Heimerl. - but the status of these 
color variations also noted on Hull Islnad indicate new taxa. 
Portulaca sp. - Portulaca lutea Sol. 
March 15, 19 &+ 
"The small bunchgrass-" - Eragrostis whitneyi Fosb. var. 
"ragweed plant-" - Chenopodium ambrosioides L. 
Illustrations: -7. Cordia subcordata Lam,; 6. Portulaca lutea Sol.; 
5. Lepturus repens (Forst. )R.Br.; 4. Digitaria pacifica Stapf.; 5 • Sida 
fallax Walp.; 2. Tribulus cistoides L.; 10. Euphorbia prostrata L.; 11. 
Cenchrus echinatus L.; 12. Cynodon dactylon (l.) Pers.; 13. Setaria 
verticellata (L.) Beauv.; 14. Triumfetta procumbens L.; 15. Sesuvium portulacastrum L. 
16. Messerschmidtia argentea (L.f.) Johnston; 17. Cassytha filiformis L.; 
18. Ipomoea indica (Burm. f.) Merr.; 19. Eragrostis whitneyi Fosb. var.; 
21. Chenopodium ambrosioides L.; 22. Eragrosti s whitneyi Fosb. var.; 24. Suriana 
maritima L.; 25- Heliotropium annomalum H. and A.; 26. Scaevola taccada 
27. Acanthaceae (we are having difficulty keying this to genus and species level- 
it is not grown in Hawaii and may have been introduced from the southwest Pacific 
area); 28. Polypodium scolopendrim Burm. f. 
C. R. Long 
Research Curator 
1 
m 
