| Description: | Thallus heavily calcified, forming clumps, ivory to pale pink or purple. Branches cylindrical, 1-2 mm wide. Branching dichotomous. Joints (genicula) not swollen and rarely found at branching dichotomie. | 
												
					   
						    | Species: see species detailed info >
 | Amphiroa rigida J.V. Lamouroux |