Neomeris annulata Dickie 1874

    Plants cylindrical to subcylindrical, unbranched with acute apex. Thalli bright green at apex and calcified whitish basal portions, solitary, often densely gregarious, 1 – 2.5 cm height. Primary branches in successive verticil from 30-50; primary branches 220-350 µm long and 15-30 µm in diameter; secondary branches 300-420 µm long, the ends dilated ends of secondary branches of all verticils closely packed to form a continuous surface layer which appears cellular, each facet acquiring a pentagonal or hexagonal shape due to compression by other facets. Hairs 700-850 µm long, deciduous; gametangia ovate to oblong, with a distinct stalk produced at terminal end of primary branch, between the secondary branches cemented together by a calcareous sheath, 160-280 µm long and 60-132 µm broad; each gametangium producing single cyst.