Fossil seeds, or roots?

[MrBones]

Hello, 

I picked up several strange "buds" in the desert this morning. I usually find small petrified wood chunks (possibly acacia) at this spot, but I have never seen this before. They really do look like seeds (like stretched walnuts).  

Found in Ruwais, Abu Dhabi, UAE (United Arab Emirates). I think it is Miocene in age.

(The first 3 look more like the familiar wood, except that they have weird small bumps on them.)

 

[MrBones]

(Here is the inside of one which has been craked in half.)

 

 

If you guys are still "stumped" by tommorow, I'll consider taking more photos using my microscope.