Protea scolymocephala concentric rings

Seen from the top, the Protea scolymocephala stem-tip flowerhead in its prime presents five concentric rings of recognisable plant parts:

The first and smallest ring is the perimeter of the white patch formed by the still closed and bunched, fluffy florets in the flowerhead centre. 

The second ring consists of pollen presenters bending in, their tips still caught in the unyielding perianth tips. This ring is slightly haphazard as the style escapes are uneven.

The third ring consists of straightened styles of open florets angled out, freed from the by now discarded perianths. 

The fourth ring, only slightly wider, is formed by the rounded tips of the longest spreading involucral bracts.

The fifth ring is the sharply pointed leaf-tips spreading well wider, ascending around the flowerhead with differently discoloured mucros protruding from their tips. This is still a ring, although the leaves are of unequal length (Manning, 2007; Rebelo, 1995; Rourke, 1980; iNaturalist; http://pza.sanbi.org).