Alstonia angustifolia

Alstonia angustifolia Wall. ex A.DC.

Alstonia angustifolia Wall. ex A.DC.；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:105718-3

Alstonia angustifolia Wall. ex A.DC., Prodr. [A. P. de Candolle] 8: 409 1844；https://www.biodiversitylibrary.org/page/163365#page/417/mode/1up

Alstonia angustifolia Wall. ex A.DC.；Merr., Bibl. Enum. Bornean Pl. 497 1921；https://www.biodiversitylibrary.org/page/11382214#page/501/mode/1up
Alstonia angustifolia Wall. ex A.DC.；Ridl. in Fl. Malay Penins. 2: 346 1923；https://www.biodiversitylibrary.org/item/256567#page/356/mode/1up
Alstonia angustifolia Wall. ex A.DC.；Mohammad, Koleksi pokok Taman Botani Kepong 26 2018；Mohammad, Adnan 2018 Koleksi pokok Taman Botani Kepong Institut Penyelidikan Perhutanan Malaysia ISBN 978-967-2149-10-1