Complex sentence: The ten basic genus types listed above have Latin names derived from five physical "forms"; cirriform wisps and patches, stratocumuliform patches, rolls, and ripples, stratiform sheets, cumuliform heaps and tufts, and cumulonimbiform towers that often have complex structure.
Split into simpler sentences: The ten basic genus types listed above have Latin names derived from five physical "forms". These are "cirriform" wisps and patches, "stratocumuliform" patches, rolls, and ripples, "stratiform" sheets, "cumuliform" heaps and tufts, and "cumulonimbiform" towers that often have complex structure.