429 



59. Penicillus Lamourouxii Decaisne. 



60. pyriformis A. and E. S. Gepp. 

 forma typica. 



explanata. 



61. dumetosus Blainville. 



62. Udotea conglutinata (Ell. et Sol.) Lamx. 



63. cyathiformis Decsne. 



64. spinulosa Howe. 



65. occidentalis A. and E. S. Gepp. 



66. verticillosa A. and E. S. Gepp. 



67. Flabellum (Ell. et Sol.) Howe. 



68. Halimeda Tuna (Ell. et Sol.) Lamx. 



var. typica Barton. 



var. platydisca (Decsne) Barton. 



69. discoidea Decsne. 

 var. typica Bergs. 



In the text p. 106 after the word typica a",'' through 

 misprint has fallen out. I regret the mistake having here- 

 with seemingly referred this variety to Dr. Howe. Comp. Dr. 

 Howe's remark regarding this matter in "Torreya", vol. 15, 

 1915 p. 48. 



var. platyloba B0rgs. 



70. Halimeda Opuntia (L.) Lamx. 



71. gracilis Harv. 



var. opuntioides B0rgs. 



72. incrassata (Ell. et Sol.) Lamx. 

 var. typica Barton. 



f. gracilis Bergs, 

 var. monilis (Ell. et Sol.) Barton. 



f. robusta B0rgs. 



f. cylindrica Bergs, 

 var. simulans (Howe) Bergs. 



73. Codium difforme Kiitz. 



74. tomentosum (Huds.) Stackh. 



75. isthmocladum Vickers. 



76. elongatum C. Ag. 



77. Bryopsis Duchassaingii J. Ag. 



