38 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 17 



idia borne in dense radiate clusters 25-30 p. in diameter on terminal cells 

 of assimilating filaments; carpogonial branches (not seen in Mexican 

 material) 3-celled, borne usually on the 4th cell below the surface on 

 vegetative laterals, the trichogyne long and crooked; gonimoblast com- 

 pact, bearing terminal carposporangia, the whole surrounded by a prom- 

 inent involucre of sterile vegetative filaments. 



Type: Holotype not designated. Two syntype specimens are pres- 

 ent under nos. 31954 and 31955 in the Agardh Herbarium, University 

 of Lund, Sweden. 



Type locality: Santa Barbara, California. 



Mexican distribution: Pacific Baja Calif. — D. 10074, 11 miles 

 west of Punta Malarrimo, Bahia Vizcaino, Apr.; D. 9232, Punta 

 Pequeiia, Bahia San Juanico, May. 



Liagora ceranoides Lamx. forma leprosa (J. Agardh) Yamada 

 Plate 2, figs. 13-15; Plate 17, fig. 3 



Yamada, 1938, p. 21. Liagora leprosa J. Agardh, 1847, p. 8. 



Thalli saxicolous, 2-4 cm. high, repeatedly dichotomously branched 

 from near the base, cylindrical, 500-700 /x, in diameter, without prolifer- 

 ous branchlets, whitish to pale rose in color ; calcification moderate, more 

 or less evenly distributed throughout; assimilatory filaments somewhat 

 moniliform, corymbosely branched, the cells rather short in general, 

 ovate or elongate-elliptical, 7-9 ^ in diameter ; plants monoecious ; anther- 

 idia non-capitate, borne solitarily on ends of assimilatory filaments; 

 carpogonial branches usually 5-celled, about 30 /x long exclusive of tri- 

 chogyne, lateral, curved; cystocarp consisting of a hemispherical cluster 

 of branched filaments of uniform character, the upper and inner ones 

 representing the gonimoblast and producing terminal and lateral car- 

 pospores, the outer and lower ones apparently representing weakly 

 developed sterile involucral filaments; base of the cystocarp provided 

 with a "cell complex" as in Liagora decussata. 



Type: Holotype not designated but probably represented by the 

 original Liebmann specimen in the Agardhian Herbarium, Botanical 

 Museum, University of Lund, Sweden. 



Type locality : Vera Cruz, Mexico. 



Pacific Mexican distribution: Pacific Baja Calif. — D. 8478b, 

 Isla Guadalupe, Dec; D. 9928, 10 miles west of Punta Malarrimo, 

 Bahia Vizcaino, Apr.; D. 10020, 10303, 11 miles west of Punta Malar- 

 rimo, Apr., Nov.; D. 10443, 17 miles west of Punta Malarrimo, Oct. 



