NO. 1 TAYLOR: PACIFIC MARINE ALGAE 233 



Setchell & Gardner 1924, p. 572, pi. 22, figs. 11-14, pi. 60. 



The habit of plants assigned to this species varies widely. Some, 

 especially cystocarpic individuals, have long segments between the erect 

 forkings, or are subsimple; others are irregularly forked at wide angles a 

 little more than in Setchell & Gardner's plate 60. No satisfactory segre- 

 gation could be effected. 



Mexico: Baja California, dredged at 14-18 meters' depth off Pta. 

 Thurloe, Schmitt no. 283D-34, 9 Mar. 1934. Nayarit, dredged off I. 

 Isabel, 710. 34-586 (cystocarpic), 3 Mar. 1934. Ecuador: Archipielago 

 de Colon, dredged at sta. 159 in 18-32 meters off Tagus Cove, I. Isabela, 

 no. 34-149C (cystocarpic), 15 Jan. 1934. Ibid., dredged at Academy 

 Bay, I. Santa Cruz, no. 34-313 (tetrasporic and cystocarpic), 20 Jan. 

 1934. Ibid., dredged from 27 meters off Post Office Bay, I. Santa 

 Maria, no. 34-290 (tetrasporic and cystocarpic), 19 Jan. 1934. Ibid., 

 dredged from 13-18 meters' depth (tetrasporic and cystocarpic), no. 34- 

 358,27 Jan. 1934. 



Gracilaria linearis Kylin, prox. 



Plants to about 4 cm tall, subsessile, flat, fairly regularly 4-6 times 

 dichotomously branched, the upper branches about one fourth as wide as 

 the segments near the base of the plant. 



Kylin 1941, p. 22, pi. 7, fig. 19. 



These probably represent a juvenile form of this plant, the branching 

 when best developed resembling the upper parts of Kylin's plants. 



Ecuador: Esmeraldas, dredged in 5.4 meters off Bahia San Fran- 

 cisco, no. 34-487, 11 Feb. 1934. 



Gracilaria Skottsbergii n. sp.^^^' ^^° 

 Plate 78, Fig. 2 



Plants to 6-8 cm tall, dull reddish purple, the texture firmly fleshy, 

 near the stipe compressed and slender, cuneate expanded to the blade, 

 which is broad near the base and with segments 2-3 cm wide, but by a 

 very close series of irregularly dichotomous forkings is divided into sharply 

 narrower segments, so that after 7-8 stages the tips are only 1-2 mm 

 broad; tetrasporangia scattered; cystocarps scattered, prominent, the 

 broad sterile base connected by filaments across the spore mass to the peri- 

 carp. 



139 Gracilaria Skottsbergii n. sp.— Plantae ad 6-8 cm altitudine, infra com- 

 pressae, cuneato-expansae ad laminam 2-3 cm lat., irregulariter dichotome fur- 

 catam in 7-8 gradibus usque ad divisiones 1-2 cm latitudine. Planta typica m loco 

 dicto I. Santa Maria, Ecuador, legit W. R. Taylor no. 34-360, 27 Jan. 1934. 



140 Named in recognition of the work on Pacific algae done by Dr. Carl J. F. 

 Skottsberg. 



