94 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 17 



cells within a gelatinous matrix, these surrounding the prominent central 

 axial filament, the innermost cell of each branched radial filament similar 

 in diameter and appearance to the central axial filament, 18-25 yu, in dia- 

 meter, the others successively reduced in size to small, closely packed, 

 anticlinally elongated cells of the outer cortex 2.5-3.5 fi broad, 4.5-6.5 ju, 

 long; tetrasporangia scattered evenly through the unmodified cortex, 

 ovoid, about 40-45 jx long, cmciate; cystocarps scattered, embedded in 

 upper parts of thalli, forming irregular swellings 400-500 fx in diameter; 

 carpospores borne in subspherical clusters 300-350 jx in diameter, angular, 

 23-28 /x in greatest diameter ; antheridia not seen. 



Type: Holotype not designated, but syntypes are Gardner's col- 

 lections under no. 2250 in Phycotheca Boreali-Americana. 



Type locality: On rocks in the middle littoral zone, Avalon, 

 Santa Catalina Island, California. 



Mexican distribution: Pacific Baja Calif. — D. 9427, Islas San 

 Benito, May; D. 10367, Punta San Eugenio, Nov. 



In order to validate this species a Latin diagnosis is provided here. 

 Kylin's original text on the species follows in its entirety. 



Thallo ad 1 cm. alto, 0.1-0.3 mm. crasso, bis usque etiam quater 

 dichotome ramoso; gonimoblastis et tetrasporangiis normaliter evolutis. 



"Gloiopeltis minuta Kylin nov. sp. ; Gloiopeltis capillaris Gardner 

 in Phyc. bor. amer. 45 Nr 2250 : 'On rocks in middle of the litoral zone, 

 Avalon, Santa Catalina Island, California, March, 1913. N. L. Gar- 

 dner.' — Taf. 2 Fig, 4. 



"Thallus bis zu 1 cm hoch und 0,1-0,3 mm dick, 2 bis 4 mal gabelig 

 verzweight; Gonimoblasten und Tetrasporangien in normaler Weise 

 entwickelt. 



"Gardner nennt diese Art Gloiopeltis capillaris. G. capillaris, die 

 von Suringar (1870 S. 31 und 1871 S. 9) nach Material von Japan 

 besonders genau beschreiben und abgebildet wurde, ist indessen bedeutend 

 grosser als G. minuta nach dem Abbildungen von Suringar (1871 Taf. 

 2) bis zu 2-5 cm hoch mit 0,5-1 mm dicken Asten." 



Endocladia muricata (Postels & Ruprecht) J. Agardh 



J. Agardh, 1847, p. 10; Smith, 1944, p. 211, pi. 47, figs. 3-4. Gigar- 

 tina muricata Postels & Ruprecht, 1840, p. 16. 



Thalli saxicolous, densely tufted, 1.0-1.5 cm. high, attached by a 

 group of coalescing stolons and numerous attachment discs, consisting of 

 numerous erect, semi-rigid, multibranched axes 300-600 /^ in diameter; 

 axes subcylindrical or angular, tapering to acute apices, irregularly sub- 



