Boulder Star Coral

There are several ways in which this coral species builds it's structures. It is believed that the coral's environment determines whether the colony grows in a 'lobed' (Orbicella annularis), 'mountainous'  or 'flat sheets' (Orbicella faveolata) or 'boulder' shape (Orbicella franksi). Can you guess what 'style' each of these structures would be called?

ICUN
Status: ENDANGERED A2bce 
Pop. trend: decreasing
https://www.iucnredlist.org/species/133134/165736431