identifying a tree whose seed came from a member

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My computer crashed and I lost the name of the tree and the kind person that sent the seeds to me years ago.

 

It is a georgous, red flowering tree growing in full sun and is now about 5 to 6 feet tall blooming for the second year from July to Sept. I posted pictures of it and it's seed on http://community.webshots.com/user/schmiege I would love to know the name of it and the person that sent the seed.

 

My user name is schmiege and the name of the album is Lorraine's Garden

 

I planted seed that I had left over from this tree and to my surprise at about 18 inches it is extremely thorny.  My tree does not have any thorns. I collected seeds this year and noticed that some are fat and tan and others are small and very dark even though they came out of the same pod.  I would like to take these seeds and plant them in the USA in Central Florida and in Richmond, VA.  Can anyone tell me if both the fat tan and small black seeds produce the same tree?  Why suddenly thorns?  I planted another baby plant in shade and it is not growing at all.  These trees are in Athens, Greece, hot and dry in Summer cold and wet (we hope) in the Winter but barely freezeing.

 

Thank you for your help.

Lorraine