Corallum corymbose but not tabulate. Branches horizontal or almost so, irregular in diameter – 6.5 mm to 13 mm sparingly coalescent, not flattened below. Under surface with very few distant level corallites and few branchlets with slightly projecting radials. Upper surface with more corallites which are closer together but still distant and branchlets which are crowded in the peripheral region. Branchlets very proliferous at the apical portion, relatively low, at most 2-3 cm before branching, 6-8 mm across, not tapering, instead expanded at apex because of presence of several terminal branchlets most are arcuate.
Axial corallites cylindrical or slightly tapering, around 2.5 mm across, around 1.5 mm exsert; calice about as wide as thickness of wall, oval or circular; wall moderately thick, with very high thin costae, becoming spinulous towards base of corallite; septa very variable-some have complete primaries, others with only 3 or 4; some have conspicuous directives, others do not have; secondaries obsolete, very occasional. A number of tall tubular, proliferous corallite produced beside axial so that it is not always possible to determine which is the mother axial.
Radials on distal portions of branchlets adnate - inner wall undeveloped bit lower wall may project about 45 degrees—either labellate, dimidiate or spout-shaped, tips either acuminate or truncate; calice circular, or oval or boat-shaped, mostly facing inward; prominently costate, developing spinules only towards of older corallites; septa poorly developed-some have the 2 directives only, others have rudiments of other primaries. Towards proximal portions of branchlets, radial gradually reduced in height, becoming first low nariform and finally subimmersed or flush with the surface well into the branches and stems. These corallites measure 1 mm or slightly more across; septa (primaries only) narrow, complete or incomplete cycle; calice distorted circles or with scalloped borders due to petaloid loculi.
Intercalicinal areas neatly covered all over with sharp fine spines, resembling and continuous with those on calicinal wall; in some places reticulum visible, in other slit-like crack can be seen.
