A group of green algae, distinguished mainly on the basis of ultrastructural morphology. The sea lettuce, Ulva[?], belongs here. They are divided into the following groups:
... 1,455 households, and 1,223 families residing in the town. The population density is 1,433.7/km² (3,704.7/mi²). There are 1,494 housing units at an averag ...