Corallum a cluster of cylindrical stems and branches, moderately anastomosing. Terminal branchlets tapering, with conical apices, arising in pairs or more than two from a common level; 2-3 cm long, around 7-8 mm across at base. Surface distinctly marked with elevations (ramparts) and depressions, the latter containing one corallite or series of 3-4 corallites.
Corallites slightly less than 1 mm diameter, deeply set, almost evenly disposed. Wall consisting of horizontal flakes tilted inwards, slightly larger than those on ramparts.
Septa triangular, outer ends partly covered by mural flakes; flat and broad so that interseptal loculi reduced to very narrow slits or mostly completely unrecognizable. Because of closeness of septa, usual formula difficult to make out. Pali large, prominent, usually 5 but there are few cases of members of triplet being separate and each bearing small palus, smaller than those on lateral pairs.
Columella missing in most corallites so that center appears as deep pinhole. In other cases, columella a tiny platform with radiating strands towards septa and in very rare instances a low tubercle is produced.
Intercalicinal areas occupied by prominent ramparts (ridges), 1mm high, with rounded summits, with rounded summits, irregular in width. Usually young corallites arise where rampart is wide. Intercellular reticulum obscured in most areas by flat topped spines. Texture of rampart finer than that within the corallite.
