Plate 3. <br>Figs. 1-8. <i>Sphacelaria mexicana</i>. Figs. 1-3, propagulae on their supporting branches, showing the two short arms and the stalk articulation. Fig. 4, a propagulum on a branch viewed from the lower margin. Figs. 5, 6, two detached propagulae showing progressive elongation of the arms in germination. Fig. 7, a detached propagulum viewed obliquely from below. Fig. 8, a portion of a filament apparently showing two empty sporangia, x 155. Is. Reviiia Gigedo. [= syn. of <i>Sphacelaria tribuloides</i> Meneghini, AlgaeBase]<br>Figs. 9-16. <i>Carpomitra luxurians</i>. Figs. 9, 10, branched paraphyses with expanded end cells. Figs. 11-16, paraphyses with sporangia in various stages of development, and empty sporangial sacs, x 330. I. Santa Maria. [=syn. of <i>Carpomitra costata</i> (Stackhouse) Batters, AlgaeBase]<br> Figs. 17-21. <i>Spermothamnion phycophilum</i>. Fig. 17, a small portion of a basal filament with haptera and three erect filaments. Fig. 18, upper part of a tetrasporangial filament to show unilateral seriate sporangia, and the progressive development of branched sporangial clusters. Figs. 19, 20, portions of older filaments to show well-developed sporangial clusters. Fig. 21, tip of a male filament to show unilateral seriate spermatangial clusters; the forked character is unusual, and the series are usually longer, on a simple filament, x 70. I. Santa Maria. (=syn. of <i>Tiffaniella phycophila</i> (W.R.Taylor) E.M.Gordon, 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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