Children (67 direct children, 70 direct and indirect children):
Ptychosperma macarthurii
Macarthur palm
Ptychosperma hentyi
Ptychosperma waitianum
Ptychosperma elegans
(tree size 1)
Solitaire palm
Ptychosperma gracile
Ptychosperma mooreanum
Ptychosperma praemorsum
Ptychosperma nicolai
Ptychosperma ambiguum
Ptychosperma propinquum
Ptychosperma buabe
Ptychosperma pullenii
Ptychosperma ramosissimum
Ptychosperma burretianum
Ptychosperma rosselense
Ptychosperma caryotoides
Ptychosperma salomonense
Ptychosperma cuneatum
Ptychosperma sanderianum
Ptychosperma furcatum
Ptychosperma schefferi
Ptychosperma hartmannii
Ptychosperma streimannii
Ptychosperma lauterbachii
Ptychosperma tagulense
Ptychosperma lineare
Ptychosperma vestitum
Ptychosperma macrocerum
Ptychosperma mambare
Ptychosperma microcarpum
Ptychosperma alexandrae
Ptychosperma pauciflorum
Ptychosperma seemannii
Ptychosperma tahitensis
Ptychosperma micranthum
Ptychosperma litigiosum
Ptychosperma arfakianum
Ptychosperma kasesa
Ptychosperma simplicifrons
Ptychosperma tenella
Ptychosperma singaporensis
Ptychosperma filiferum
Ptychosperma vitiensis
Ptychosperma halmaherense
Ptychosperma rupicola
Ptychosperma bleeseri
Ptychosperma hospitum
Ptychosperma kajewskii
Ptychosperma kerstenianum
Ptychosperma leptocladum
Ptychosperma macrospadix
Ptychosperma montanum
Ptychosperma multiramosum
Ptychosperma pachycarpum
Ptychosperma wendlandianum
Ptychosperma beatricae
Ptychosperma capitis-yorkii
Ptychosperma cunninghamiana
Ptychosperma jardinei
Ptychosperma julianettii
Ptychosperma wendlandiana
(tree size 2)
Ptychosperma hosinoi
Kattai palm
Ptychosperma sanderiana
Ptychosperma angustifolium
Ptychosperma cunninghamianum
Ptychosperma paradoxum
Ptychosperma singaporense