|Red List Category & Criteria:
||Montúfar, R. & Pitman, N.
||Valencia, R., Pitman, N., Léon-Yánez, S. & Jørgensen, P.M. (Ecuador Plants Red List Authority)
A tree endemic to eastern Ecuador, where it is known from a single 1933 collection on the Río Pastaza, west of the town of Río Negro. Expected in the Antisana and Sangay protected areas. Until the type is confirmed to have survived the bombing of the Berlin herbarium during the Second World War, no IUCN threat category can be assigned. No specimens of this species are housed in Ecuadorean museums. Apart from habitat destruction, no specific threats are known.