Goniothalamus macrophyllus (Indonesia) ?

Goniothalamus macrophyllus (Blume) Hook.fil. & Thomson, Linnaea 29: 313 (1858) (syn: Goniothalamus forbesii Baker f. ; Goniothalamus lanceolatus (Bân) Mat-Salleh ; Goniothalamus macrophyllus var. kerrii Bân ; Goniothalamus macrophyllus var. lanceolatus Bân ; Goniothalamus macrophyllus var. siamensis J.Sinclair; Polyalthia macrophylla (Blume) Blume; Unona macrophylla Blume);
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S. Thailand to W. Malesia: Borneo, Jawa, Malaya, Myanmar, Sumatera, Thailand as per POWO;
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Is it Annonaceae 1 : Attachments (2).  4 posts by 3 authors.
Could you help me to id our plant please.

The plant has a resemblance to Rauwenhoffia siamensis / Melodorum siamensis

Did not find distribution in Indonesia.

Goniothalamus macrophyllus (Blume) Hook.f. & Thomson

Yes. May be as per
https://tropical.theferns.info/viewtropical.php?id=Goniothalamus+macrophyllus

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References:
POWO  Catalogue of Life  Useful Tropical Plants