Plate 1. <br>Figs. 1, 2. <i>Boodlea composita, f</i>. Fig. 1, a small portion of a thallus to show its characteristics in the plane phase, x 15. Fig. 2, tip of a branchlet showing a hapteral cell attaching to a larger segment, x 73. Ecuador.<br>Figs. 3-6. <i>Derbesia longifructa</i>. Four oval-oblong sporangia attached to the supporting filaments, showing the basal septum or, in fig. 3, a definite stalk cell. Ecuador, x 115.<br>Figs. 7-9. <i>Derbesia Hollenbergii</i>. Portions of three filaments to show young subturbinate sporangia, and an old sporangium with an evident stalk cell. I. Santa Maria, x 70.<br>Figs. 10-13. <i>Codium isabelae</i>. Four peripheral utricles, each showing a much-thickened end wall and one or two gametangia. I. Isabela. x 70.<br>Figs. 14-16. <i>Codium santamariae</i>. Three peripheral utricles with slightly thickened end walls and solitaria gametangia. I. Santa Maria, x 70. [= syn. of <i>Codium isabelae</i>, AlgaeBase]<br>Figs. 17-18. <i>Acetabularia parvula v. americana</i>. Fig. 17, one segment of a disk and portions of others, to show the unarmed end wall, x 90. Fig. 18, insert, two coronal processes to show the hair scars, x 140. Is. Revilla Gigedo. [= syn. of <i>Parvocaulis parvulus</i>, AlgaeBase]
Taylor, William Randolph 1945. Pacific marine algae of the Allan Hancock Expeditions to the Galapagos Islands. <i>Allan Hancock Pacific Expeditions</i>; v. 12. University of Southern California.
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