obsolete clumped colony morphology true This term was made obsolete because it was added to map an out-of-date controlled vocabulary term, and unhelpfully groups two fairly unrelated phenomena. 2011-04-19T02:50:53Z FYPO:0000153 OBSOLETE. A colony morphology phenotype in which cells form clumps. Clumping may result from incomplete hydrolysis of septum edging material, causing cells to remain attached via remnants of the septum edging, or from cell-cell adhesion between cells that do not have a shared origin. midori