Zoom toward the central part of NGC 2264 imaged through its Herschel column density. Same caption as Fig. 2. The white and black crosses show the location of the NGC 2264 IRS1 and IRS2 sources, respectively. The associated IRS1 and IRS2 protoclusters contain most of the gravitationally bound clumps of this NGC 2264 subregion. The 15 most massive clumps (M > 9.3 M_⊙) are pinpointed with their number, the 16th clump is located outside this zoom.