I have been concentrating on those different /very distinctive calyx.
This pic shows the same flower as you have...note the angled calyx.
RUFOUS-TAILED HUMMINGBIRD
I believe it is Macleania sp...interesting ..it is in Ericaceae
Macleania - Wikipedia
Not positive which species.
This link show the same flattened seed capsules as your images 2/3/4.
PlantFiles Pictures: Macleania Species (Macleania insignis) by Kell
Maybe a good starting point to research more.
More...
https://www.flickr.com/photos/...
https://www.flickr.com/photos/...
I have a few poor pics of one I saw in Costa Rica....the berries look cute.
https://www.flickr.com/search/...