list of algae collected at EFniwetok, 1952 arranged in phy-ogenetic sequence. Name Family Islands at which } Collected ° ad 1. Entophysalis crustacea (J.Ag./Dr.aUaily Chroococcaceae 3. 4 5. Lyngbya sp. Symploca hydnoides Gon. Plectonema Wollei Gom. " " Scytonematoceae 6. 7. Calothrix sp. Ulothrix implexa Rivulariaceae Ulotrichaceae 2. 8. lyngbya sordida Gom. Enteromorpha prolifera (Fl.Dan) J.Age 9. Enteromorpha sp. 10. Rhizoclonium riparum Harv. ll. Caulerpa racemosa var. clavifera (Turn) Weber uvifera (Turn) van Bosse 12, Caulerpa serrulata var. typica Tseng. 13. Caulerpa sp. 14. Vaucheria sp, 15. Avrainvillea lacerata (Harv.) J.Ag. 16. Codium sp. 17. Halimeda monile (Ellis & Sol.) Lam. 18. Halimeda stuposa W. R. Taylor 19. Halimeda sp. 206 Udotea SDe x Caulerpaceae x |x n 31. Jania rubens (L.) Lamx. 32. Jania sp. x x|xX x x] |x|x|x/x} x| x |x Xx x ft tt " " Corallinaceae xix} |x} xe x x |x|] |x X[K Ix xix] [x |x X |x [x |x fx] xx [x] x - x{|x x] x x} |x xX x fx|x X Ix x bebe} x x [x |x Ix}x | BonnemaisonLaceae |x " x x x x x| Groups: 1 to 6, blue-green; 7 to 25, green; 26 to 29, brow; 30 to 2, red. ~ 110 - x Codiaceae " x x x x |x " . tt Vaucherlaceae tt 29. Pocockiella Papenfussii W. R. Taylor 30. Asparagopsis Sanfordiana Harv. x x x X t 27. Dictyota sp. [a |x|x " Cladophoraceae Dictyotaceae 28. Padina Commersonnii Bory ke Ln | " 23. Dictyosphaeria cavernosa (Forrsk) Borgs. Valoniaceae 26. Dictyota pinnatifida Kutz. 2% 3 jx] x} x Bryopsidaceas 24. Microdictyon sp. 25. Valonia sp. rc old {|x| x|x/x Oscillatoriaceas} n 21. Bryopsis pennata Lam, 22¢ Bryopsis sp. fe Sis| | & SHER Ble [sl 6 SSR EB SsPaO ree 18 1S eB |x