I know I've seen this before, Macadamia perhaps?

If I'd only seen the nuts in the 2nd pic, I might have guessed macadamia too, but the leaves and fruit in the top pic are all wrong. Not macadamia...

Yup I see. How about a Persae of some sort. Not an avocado of course?

Here’s the tree as it stands, if that helps.

Might be a duplicate with a label at a nearby publicly accessible collection. That you could visit during a slow time like right after opening on a weekday morning. If you search "las vegas arboretum", "las vegas botanic garden" and so forth more than one possible location for coming across the same tree comes up.

I believe it is a Cordia, common name manjac.

Sorry, manjack.

I couldn't remember the genus name.

cordia - Bing images

Looks right to me.

Thank you, tmlang and everyone else! Much appreciated.

The stippling and burning of the leaves tells me it has mites.

Sugi_C you are so welcome 🙂

The fruits may not be as palatable as they look -- sometimes called snotty gobbles.....

https://en.wikipedia.org/wiki/Cordia

"Trees in the Borage family" makes me think of the now seemingly unobtainable Ehretia trees. Forestfarm, decades ago, briefly offered them based on a tip about where to find seeds in western Washington - from ALJ. My overall impression is the new Forestfarm, no longer directly run by Ray Prag, is less likely to chase down ultra-obscure stuff like that. They will grow in the southeast: https://jcra.ncsu.edu/horticulture/our-plants/results.php?search=Ehretia

Embo why don't you open a mail order nursery!!!