There are numerous copies of the Vulgate Bible that include those scaly shapes with dots as part of the decorated initials. Also Tractatus theologicus and some of the Latin breviaries (music). Sometimes it is a short or long line coming out of the top of the scale. Sometimes it is a little point, like the point of a spear. In the context of decorated initials, they are purely decorative. They have nothing to do with astrology.
Bumps that are piled up in triangles are not purely decorative if they are in the context of illustrations or maps. They represent mountains most of the time.
On the VMS rosettes folio, I don't think the bumps and lines are purely decorative. I think they are meant to separate "emissions" and concepts. Some of them are drawn like hills, some like palisades. These are probably abstractions of physical and cosmological ideas.
Bumps that are piled up in triangles are not purely decorative if they are in the context of illustrations or maps. They represent mountains most of the time.
On the VMS rosettes folio, I don't think the bumps and lines are purely decorative. I think they are meant to separate "emissions" and concepts. Some of them are drawn like hills, some like palisades. These are probably abstractions of physical and cosmological ideas.