Parkia singularis subsp. borneensis
Content
Distribution
Asia-Tropical: Borneo present (Kalimantan present, Sabah present, Sarawak present)
Borneo (Kalimantan, Sarawak, Sabah). — .
Notes
The foliage of this species is very distinct from that of the other species since it has opposite and decussate leaves with few, large leaflets.
Morphological and geographical separation of the subspecies is not absolute, and a minority of gatherings are difficult to assign.
In addition, there are a number of specimens with leaf characters intermediate between P. singularis and P. sumatrana. They may be anomalous for a variety of reasons, and it is unlikely that all are unplaced for the same reason. Some may be aberrant forms of either P. singularis subsp. borneensis or P. sumatrana, some may be of hybrid origin, or some might represent a novel taxon. More complete material is needed with detailed ecological notes, and showing the shape of the capitulum at anthesis and the size and shape of the mature pods (also see notes to P. sumatrana).
Morphological and geographical separation of the subspecies is not absolute, and a minority of gatherings are difficult to assign.
In addition, there are a number of specimens with leaf characters intermediate between P. singularis and P. sumatrana. They may be anomalous for a variety of reasons, and it is unlikely that all are unplaced for the same reason. Some may be aberrant forms of either P. singularis subsp. borneensis or P. sumatrana, some may be of hybrid origin, or some might represent a novel taxon. More complete material is needed with detailed ecological notes, and showing the shape of the capitulum at anthesis and the size and shape of the mature pods (also see notes to P. sumatrana).