Asymmetriads

The membraneous arches soaring into the sky now fold inwards and merge to produce a thickset truck enclosing a scene of teeming activity. At the centre of the trunk a process of polycrystallisation on a giant scale erects an axis commonly known as the 'backbone', a term which I consider ill-chosen. The mind-bending architecture of this central pillar is held in place by vertical shafts of a gelatinous, almost liquid consistency, constantly gushing upwards out of wide crevasses.
Stanislaw Lem, Solaris