428 



A small tuft of this plant was found in termingled between several 

 other algae. The cells in the basal part were about 150 ( thick and up 

 to ten times as long, upwards gradually shorter and thinner, the cells 

 in the upper ramuli being only about 70, thick and a few times longer. 



Found in shallow water, near the shore in a rather unpro- 

 tected place. 



St. Croix: Coakley Bay. 



29. Cladopkora fascieularis ( Mert.) Kiitz. 



30. crispula Vickers. 



31. heteroneina (Ag.) Kiitz. 



32. Anadyomene stcllata (Wulf.) Ag. 



33. Microdictyon uinbilicatum (Veil.) Zanard. 



34. Valonia ventricosa J. Ag. 



35. macrophysa Kiitz. 



36. utricularis (Roth) Ag. 



37. .Egagropila C. Ag. 



38. Dictyosphseria favulosa (Ag.) Decsne. 



39. van Bossese B0rgs. 



40. Cladophoropsis membranacea (Ag.) B0rgs. 



41. Boodlea Siamensis Reinb. 



42. Struvea elegans B0rgs. 



43. Struvea anastomosans (Harv.) Piccone. 



44. Chamsedoris Peuiculuni (Sol.) O. Kuntze. 



45. Siphonocladus tropicus (Crouan) J. Ag. 



46. Ernodesmis verticillata (Kiitz.) Bergs. 



47. JVeomeris annulata Dickie. 



48. Batophora Oerstedi J. Ag. 



49. Acetabularia Caliculus Quoi et Gaimard. 



50. crenulata Lamx. 



51. Acicularia Schenckii (Mob.) Solms. 



52. Avrainvillea nigricans Decsne. 



53. Mazei Murray & Boodle. 



54. Geppii B0rgs. 



55. asarifolia B0rgs. 



56. Rhipilia tomentosa Kiitz 



57. Cladocephalus luteofiiscus (Crouan) Borgs. 



58. Penicillus capitatus Lamarck. 



forma typica. 

 laxa. 



