Calyptrocalyx flabellatus

The Calyptrocalyx flabellatus records from the lowlands in the Prafi River basin to the west of Manokwari are from an area which has now been logged and converted to palm oil plantations, and it is unlikely the species survives there. The records from the Wariori River area closer to Manokwari are from an area which appears to be continuous forest on satellite imagery, and does not have any logging or oil palm concessions recorded on Global Forest Watch (2022). However, the localities on the herbarium specimen labels (all collected 1994-95) are recorded as "Surya Company Timber Concession Area", "SP8 Transmigration Scheme" and "inland from Masni coastal logging camp" which suggests that potential threats from logging and settlement development exist in this region. The record from the southern part of the Wandammen Peninsula is from a region where the forest is more or less continuous and no obvious threats are present. The record west of Jayapura on the southern side of Lake Sentani is from an region where there is at least 50% forest loss visible on satellite imagery (Global Forest Watch 2023). The drivers of this forest loss are not known. The exact locality of the type specimen collection site in the Arfak Mountains is not clear, but there is much intact forest in this range.

None of the known sites for Calyptrocalyx flabellatus are inside protected areas, and there are no protected areas near any of these known sites (Global Forest Watch 2022). The species is present in 3 ex situ collections (BGCI 2023).