They look slightly larger than an inch from the photo I've seen.

If there are any Portuguese speakers out there, how would you translate the common name 'Cereja da cerra'?

BTW I'm after seeds of this species.

The good species of Inga like edulis and mortontonia grow to very large sizes, so this could potentially be used as a dwarfing rootstock. Or just as an ornamental in its own right.

A Peruvian guy a few weeks ago uploaded a video on Bunchosia Armeniaca. As you will observe, the leaves do not have wavy edges, but are long and flat. This is correct ID

https://www.youtube.com/watch?v=oKCPHzSyz0s

Eugenia Luschnathiana in Portuguese is known as pitomba-da-baia or curuiri. The second name is a mouthful. The first could be translated as Bay Pitomba or Bahia pitomba. But seeing as this species is already established and more popular outside of Brazil, it will be the default 'pitomba'.

Talisia esculenta is indeed a soapberry and is the pitomba in Brazil, but also has some other names, including pitombo, Olho-de-boi (bull's eye) and pitomba-de-macaco (monkey pitomba). In Brazil, there is a phrase to insult someone: "You're not worth a pitomba" because the fruit is a small thing, but it makes me wonder whether it is as nice tasting as a lychee if they are using it as a slur.

I hate the notion of similar names for fruit that are quite divergent taxonomy-wise. Of course the Tupi natives were a bit more pragmatic and looked at properties of appearance and palatability. I like the name Bull's eye, it complements Dragon's eye well (otherwise known as Longyan)

Someone recently uploaded a video of a Sweet Tart: https://www.youtube.com/watch?v=6pPd4Nmq2NU

Would be good to update info in the Ultimate Mango List: https://docs.google.com/spreadsheets/d/1T5yroo6oqvsERObsP-LtgS_zX43TkEMcqtf4_CajGGE/edit#gid=0

Hoping it is polyembryonic.

This species will increase in popularity I think, which makes me wonder about its common name.

The full Brazilian name is 'guamirim cereja' although most people on this forum seem to shorten it to just 'guamirim' - which is actually a name used for multiple different fruits.

Typing in E. florida is already tripping up search functions seeing as most results are for the state of Florida.

Is it just me or does the fruit resemble E. candolleana (Rainforest Plum)? Maybe this could be its close cousin Rainforest Cherry. 

Kwai Muk is from China and is certainly the most cold hardy Artocarpus.

I would agree with your assumptions and add that I think the bottom one is armeniaca. But taxonomists are currently working on this very genus and should have confirmation this year from them.

[Edit] Pina Colada and Coconut Cream, even though these are Monoembryonics.

@Oscar Black and Purple Grumichamas not the same variety. The only difference to my eye seems to be that the Black variety has green calyxes while the purple variety has purple calyxes. This would actually make your variety the black one, but it seems there is a lot of fluidity between these 'varieties'. Surprised to hear Miguel talk of drastic height differences.

Helton has pics and names of three varieties: http://www.colecionandofrutas.org/eugeniabrasili.htm but there are certainly more. He confirmed to me that the red variety 'erythrocarpa' is a variety that came from the purple 'erythrocarpus'. Moreover, there is a bright yellow one 'leucocarpus' as well as a dark yellow (amber) colored one. Not sure if this is the same as the orange variety.

Thanks Oscar.

I guess the next questions are, what is it and should I remove the leaves.

Who is growing the large fruited form and can supply seeds in the near future?