. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 200 fim Branch with branchlets abruptly thin- ner than main axis. Persistent apical laments. Surface cells of mature branch. Surface cells of branchlet with la- ment scar. Transverse section of branch. Transverse section of cortex. Phylum Rhodophyta Class Florideophyceae Order Ceramiales Family Rhodomelaceae CHondrophyCUS gemmiferUS (Harvey) Carbary & Harper 1 998 Thallus: bushy, sti , wiry, 2-5(-l 5) cm high, yellow- brown, occasionally with red- brown tips; branching dense, alternate to irregular. Branch
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 200 fim Branch with branchlets abruptly thin- ner than main axis. Persistent apical laments. Surface cells of mature branch. Surface cells of branchlet with la- ment scar. Transverse section of branch. Transverse section of cortex. Phylum Rhodophyta Class Florideophyceae Order Ceramiales Family Rhodomelaceae CHondrophyCUS gemmiferUS (Harvey) Carbary & Harper 1 998 Thallus: bushy, sti , wiry, 2-5(-l 5) cm high, yellow- brown, occasionally with red- brown tips; branching dense, alternate to irregular. Branches cylindrical, somewhat flattened with age, mm diam., tapering to mm diam. at apices. Branchlets numerous, cylindrical, mm diam., () mm long, blunt, wart- like, often swollen; apices tufted with fine deciduous, dichotomously branched laments extending just beyond rim of terminal depression. Surface cells oval to angular, 40-50(-130) urn diam., with surface projection near apices, deeply pigmented; medullary cells large, colorless; apical cell sunken in terminal depression. Holdfast disc- like or spreading to pad-like. Uncommon: on hard surfaces of shallow reef ats or attached to dead coral rubble on shallow sand plains; to 20 m deep. Highborne Cay distribution: in most stations limited to the reef crest, in one instance on the reef Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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