NO. 1 TAYLOR: PACIFIC MARINE ALGAE 117 



S. galapagense v. setifolium from I. Isabela probably belong in part to that 

 variety, but the specimen from Turtle Point is S. galapagense Grun. 



Ecuador: Archipielago de Colon, I. Isabela, Hassler Exped. no. 

 101 Sj June 1872. Ibid., drifted ashore south of Banks Bay, no. 34-126, 

 13 Jan. 1934. Ibid., drifted ashore at Tagus Cove, nos. 34-149 A. -149 E, 

 -149G, 13 Jan. 1934. 



Sargassum Templetonii Setchell 

 Plate 26 



Setchell 1937b, p. 140, pi. 29, figs. 15-19, pi. 31, figs. 51-53. 



These plants seem undoubtedly to be Setchell's S. Tempeltonii, but 

 certain modifications in his description seem appropriate. They are prob- 

 ably quite large plants, for the portions mounted, obviously incomplete, 

 exceed 4 dm in height. The vesicles were always unarmed, on stalks not 

 exceeding their diameter. In no. 34-104 the leaves, 0.7-1.5 mm wide an3 

 to 4-5 cm long and branched, are entire. In no. 34-107, though quite ir- 

 regular, they are often clearly broader, to 3 mm, and serrate, the teeth 

 relatively large and very widely separated, at intervals commonly of 3-10 

 mm, the teeth 0.3-1.0 mm long. In no. 34-195 the lower leaves are again 

 quite broad, to 3 mm or a little more, subsimple and entire below with a 

 few strong teeth near the base but otherwise entire. While no teeth were 

 seen on the fragmentary type kindly loaned by the California Academy of 

 Sciences, a few were seen on leaves of no. 149 mounted on the same sheet, 

 though the tangled and overgrown condition of the specimen did not per- 

 mit obtaining a very good idea of their distribution. 



Ecuador: Archipielago de Colon, in the shore drift at Pta. Albe- 

 marle, I. Isabela, nos. 34-104, 34-107, 12 Jan. 1934. Ibid., driftweed 

 floating off Pt. Christopher, no. 34-195, 16 Jan. 1934. 



Sargassum zacae Setchell 



Plants with a simple subconical holdfast, with several axes arising to 

 a height of 60 cm or more from near the base, their lower portions rough 

 with the scars of old leaf and branchlet bases, but quite smooth above; 

 conceptacles moderately compact ; otherwise in general corresponding to 



the type description. 



Setchell 1937b, p. 138, pi. 29, figs. 13, 14, pi. 31, fig. 50. 



These plants show, as might be expected, a good deal of variation in 

 the leaves, but except on no. 34-350B very little forking. In general on 

 the more developed shoots the lower leaves were a little dentate and the 



