Helwingia himalaica ?

Helwingia himalaica Hook. fil. & Thoms. ex C. B. Cl., J.D.Hooker, Fl. Brit. India 2: 726 (1879) (syn: Helwingia chinensis f. oblanceolata S.S.Chien ; Helwingia himalaica var. gracilipes W.P.Fang & Soong ; Helwingia himalaica var. nanchuanensis (W.P.Fang) W.P.Fang & Soong ; Helwingia himalaica f. oblanceolata (S.S.Chien) W.P.Fang & Soong ; Helwingia himalaica var. parvifolia H.L.Li ; Helwingia himalaica var. prunifolia W.P.Fang & Soong ; Helwingia japonica var. himalaica (Hook.f. & Thomson ex C.B.Clarke) Franch. ; Helwingia japonica var. nanchuanensis W.P.Fang ; Helwingia lanceolata Watt ex Kanjilal, P.C.Kanjilal & Das ; Helwingia omeiensis var. oblanceolata (S.S.Chien) H.Hara & S.Kuros. ; Helwingia omeiensis f. oblanceolata (S.S.Chien) H.Hara & S.Kuros.);
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Himalaya to S. China and N. Indo-China: Assam, China South-Central, China Southeast, East Himalaya, Myanmar, Nepal, Thailand, Tibet, Vietnam as per POWO;
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Unknown plant, Possibly Helwingia, but what species?: 4 images.
This too was found in Arunachal Pradesh, Upper Siang, no clue what species if it is indeed Helwingia…

A suggestion. Comparative images of  the picture on the NET  have resemblance to the leaves of the plant at:
http://phytoimages.Anaxagorea_luzonensis_14448.html

Pl. check Helwingia himalaica Hook.f. & Thomson ex C.B.Clarke, which is reported from the area as per details at
https://commons.wikimedia.org/wiki/Category:Helwingia_himalaica

Helwingia himalaica looks the closest to any suggestion made, although it might be a different variety, there seem to be a lot of them.
The plant in the link (http://phytoimages.Anaxagorea_luzonensis_14448.html) looks nothing like the plant I’ve seen to my opinion, only the leaf surface structure bears some resemblance, no other features even come close to it. Completely different habit, stem, leaf edge and shape, colour….ect.
Kind regards and thank you for your help!

 

 

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References:
POWO  Catalogue of Life  GBIF (High resolution specimens) Flora of China  Annotated checklist of Flowering plants of Nepal  India Biodiversity Portal  PFAF  Wikimedia Commons  shootgardening  havlis  keepingitgreennursery  esveld