I am very impressed with this leaf. I do not know what the name of this leaf is. This leaf is very strange. Look at the shape is very strange and looks like a defective leaf, this leaves like the growth of ringworm, or a kind of skin disease, hahaha.
I am amazed by this leaf, first I see it I have little fear because I think this is a monster leaf, who knows the name of this leaf please let me know. 
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From @taniaart