SMITHSONIAN C 



ONTRIBUTIONS TO THE MARINE SCIENCES 



FIGURE 12. (A) Thickness of yearly bands in C. coinpactitm from southern Labrador (specimen 10-7S (la)). The 

 number of asexual conceptacles in each band, in the limits of the SEM mosaic, is indicated. (B) SEM of C. compac- 

 tum from the Great Northern Peninsula of Newfoundland, showing yearly bands of conceptacles. This is a faceted 

 specimen, with the facet boundary represented by the abrupt change in the slope of the conceptacle planes and ragged 

 vertical lines on the left (see Figure 18). A broken-out conceptacle (2006/2007) is shown by the arrow on the right, 

 with tissue formed from the base of the conceptacle refilling cavity; this tissue formed months later than the surround- 

 ing vegetative tissue. 



