@ossobuco,
Albizia julibrissin (silk tree, mimosa); native to Asia. I'm not as in love with this one as the Jacaranda. Sort of hard to find a great picture - re the form of the tree, but people like it for patios as it can be kept on the low side. My garden bible says it is often beautiful from above because of its undulating branching, but I've not seen it from above.
Chorisia speciosa (floss silk tree) - native to South America - I'm biased for them because of their form and beauty, with an interesting trunk and pretty flowers.
(That's a nice site for some Los Angeles area houses)
Chionanthus retusus (chinese fringe tree) - don't know much about this one, only saw one a couple of times.
Calodendren capense (cape chestnut); native to South Africa.
Looks like this is in Balboa Park in San Diego, site of the wonderful San Diego Zoo.
(I don't say that about every zoo)
enough for now (I'm remembering many more)