NO. 1 TAYLOR : PACIFIC MARINE ALGAE 105 



Ecuador: Archi'pielago de Colon, a fragment dredged from 183-270 

 meters at sta. 143, 1. Wenman, no. 34-88B, 1 1 Jan. 1934. Ibid., dredged 

 from 9-37 meters near North Bay and anchorage, I. Marchena, Schmitt 

 nos. 310 A -35, 311A-35, 3 Dec. 1934. Ibid., dredged off Academy Bay 

 at sta. 169, 1. Santa Cruz, no. 34-322, 20 Jan. 1934. Ibid., dredged from 

 25 meters' depth off the anchorage, I. San Cristobal, Schmitt no. 43A-33, 

 31 Jan. 1933, Ibid., dredged off Black Beach Anchorage, I. Santa 

 Maria, no. 34-249, 19 Jan. 1934. Ibid., dredged in abundance from 27 

 meters' depth at sta. 167, no. 34-285 (TYPE), 19 Jan. 1934. Ibid., 

 dredged from a rocky bottom at 36-55 meters' depth at sta. 203 off I. 

 Espanola, no. 34-416, 31 Jan. 1934 



SPOROGHNUS C. Agardh, 1817 



Plants with a single erect main axis bearing alternate spreading 

 branches, which in turn bear many short determinate branchlets terminat- 

 ing in tufts of brown filaments, which branchlets eventually near their 

 ends are each swollen by the sorus of sporangia and paraphyses which sur- 

 rounds them. 



KEY TO SPECIES 



1. Fertile branchlets relatively long stalked, the fertile portion sub- 

 cylindrical, terminated by a hair tuft directly . . . S. Bolleanus 



1. Fertile branchlets short stalked, the fertile portion subcylindrical, 

 terminating in a slender style equally long, which in turn bears 

 the hair tuft S. rostratus 



Sporochnus Bolleanus Montagne 



Plants to 57 cm tall, profusely alternately branched, the branches 

 bearing many stalked branchlets which are small when young and tipped 

 with clusters of brown filaments 5-8 mm long, but later become swollen 

 with cylindrical tips 2-5 mm long, on stalks about as long, the sori con- 

 taining slender paraphyses with pyriform to subglobose end cells, and 

 sporangia 25-30 /a long. 



Taylor 1928, p. 114, pi. 14, fig. 14. 



The swollen fertile branchlet tips are not so long as is common on 

 Atlantic specimens. Kiitzing (1859, pi. 81, fig. 2) figures the paraphyses 

 as somewhat clavate. However, examination of material from Florida, 

 which certainly seems typical of what passes under this name from the 

 western Atlantic and Caribbean, shows them much as in the Ecuadorean 

 specimens, though perhaps a trifle narrower. 



