Similar plants in Botany

[ololololo]

when they have the profile you drew, it could be that you are seeing a 3, 4, 5, 6, or more petaled item depending on your point of view and what the flower looks like in other orientations. Also, one has sepals, the other has a calyx of some sort, so I think you could tell them apart if you could figure out what they are.

In real life, these flowers are naturally distinguishable, no matter what. But in the VMS style, they coincide in an unusual way.

f51v-f54v-f94r these remind me of clovers, compound. Your drawing is one interpretation, another is that you are seeing petals only along the outside like an aster. Or it could be filled in, like a dandelion.

This looks like muscari. Like some kind of very large muscari.
   

Anyway, good idea to gather the traits and see what we can make of them.

In any case, I assume that in Herbal A the artist borrowed details from other plants, while in Herbal B they were drawn according to roughly the same scheme.
By the way, in Herbal B, you can distinguish the subfamily of Unilateral ones — f31r, f31v, f46r. Their leaves are arranged only on one side.