NO. 1 TAYLOR: PACIFIC MARINE ALGAE 199 



of the axial segments, of one, rarely to 4 segments, when single the seg- 

 ment flat and rather narrowly lanceolate, or above, cultriform; concep- 

 tacles about 0.45 mm diam., 0.55 mm long, broadly truncate conical, im- 

 mersed in the end of the lateral branchlet, sometimes winged, or the 

 lower part of the segment subcylindrical and stalklike, or the conceptacles 

 strongly projecting from the face of the axial segments, when they may 

 even be short stalked. 



Manza 1937a, p. 47. 



The supposedly distinctive feature of Joculator — that the conceptacles 

 may be borne on the faces of the segments — is not unique, for it is a not 

 infrequent occurrence on the classical Corallina officinalis Linnaeus of the 

 New England coast. 



Ecuador: Archipielago de Colon, in intertidal pools of a reef north 

 of Tagus Cove, I. Isabela, no. 34-168, 13 Jan. 1934. Ibid., common on 

 rocks in tide pools of the lower littoral, I. Santa Maria, no. 34-240 A, 17 

 Jan. 1934. 



CORALLINA Linnaeus, 1758 



Plants with calcified, crustose bases spreading on the substratum, and 

 often confluent ; the bases giving rise to an indefinite number of erect axes 

 which are terete to compressed, generally branching in a plane, the branch- 

 ing usually oppositely pinnate ; articulated, the calcified joints cylindrical 

 to flattened, the short flexible nodes ecorticate; conceptacles formed by 

 the conversion of lateral or terminal pinnules, naked or bearing hornlike 

 projections, the apex with a pore. 



KEY TO SPECIES 



1. Segments cylindrical to compressed 2 



1. Segments compressed to quite flat C. officinalis 



2. Main axes and chief branches not particularly prominent, the 

 habit broadly pyramidal or involved 3 



2. Main axes and chief branches percurrent, clearly marked, the 

 fronds narrow 4 



3. Small and delicate plants, the diameter of the axial segments 

 about 0.2-0.4 mm C. gracilis 



3. Larger and coarse plants, the diameter of the segments about 0.7- 



1.0 mm C. chilensis 



4. Minor branches complanate, but irregularly radially disposed and 

 imbricate about the chief branches . . C. gracilis v. lycopodioides 



4. Branching essentially complanate throughout, though less regular 

 in the lower divisions C. vancouveriensis 



