Ok , I sticking to the chittam Burl for the second one but my only other thoughts looking at the lower portion of the first pic would be mesquite burl...but the color has me thrown!
Ok after much thought the first one could be some figured narra!
I did not see that it was two separate things. I think that the second could very easily be Grapevine I have had some of that coloring/grain in the grapevine I have turned