Plate 2. <br>Figs. 1-6. <i>Derbesia prolifica</i>. Figs. 1, 2, tips of two filaments, each showing several gametangia. x 26. Figs. 3-6, portions of four filaments, each showing a spherical gametangium with a small basal cell or septum, x 70. I. Espafiola.<br>Figs. 7-8. <i>Spongomorpha conjuncta</i>. Fig. 7, a small portion of the central strand system to show the binding rhizoidal filaments. X 16. Fig. 8, tip portion of a branch to show the blunt unilateral branchlets. x 60. I. Santa Maria.<br>Figs. 9-11. <i>Zosterocarpus abyssicolus</i>. Fig. 9, portion of a branch to show the branchlets, the young "sporangial" cells, and beginning gametangium development. Fig. 10, the tip portion of a branch to show the acute apex, the intercalary growth zones, and one of the yellow "sporangial" cells. Fig. 11, forks of two larger branches to show the character of the junction, and a well-developed gametangial zone, x 245. I. Santa Maria.<br>Figs. 12-17. <i>Sporochnus rostratus</i>. Six paraphysal branches from a fertile ramulus, to show the expanded end cell, young and old sporangia, and empty sporangial walls, x 330. I. Santa Maria.
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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