Thespesia populnea MALVACEAE

Sample information

Sample ID178-10-4
Common nameMilo, Portia tree


Pollen / Sporepollen
Morphologic typepantoporate
Surface patternechinate
Equatorial sizemin 72.5, mean 80, max 87.5
Polar sizemean 80
Equatorial shapecircular
Polar shapecircular
Grain arrangementdicot
Aperture countM
Pore morphologywith an operculum, sunken pore
Pore surface shapecircular
Wall thickness2.5
Exine typetectate
Columella visible?True
Morphology notesPeriporate. Round pore apertures with well defined costae. Exine thickness 2.5um. Tectate/echinate with varied columnellae longer under echina, compressed at pore opening. Shape spheroidal. Aereolate. At pore opening compressed columnellae and longer at echinate extrusion. (notes from Thespesia populnea-Sumatra ref slide H167 by Gossen at University of Minnesota collection of Ed Cushing 2007)

Ecology and Geography

Plant typeangiosperm
Floristic region(s)India (tropical) , Northwest Pacific , Central Pacific , East Pacific Islands , Other outside Australasia , Maritime Southeast Asia , Papua New Guinea (lowland) , Australia (east coast)
Vegetation communitiesopen forest, shrubland
Habitat notesTropical and sub-tropical warm found at sea-level to 275 metres. In very dry areas Milo survives by tapping underground water. Can survive 8 months of drought with mean annual temperature 20-26C. The tree is a valuable coastal windbreak. Found in the fossil pollen record for KAO3 of Rano Kao, Rapa Nui (Easter Island) (Gossen,2010). Also called Pacific Rosewood by natives of Easter Island that used this wood for carvings.


CollectorJ.W. Parham
ANU access code14368
Collection siteDobuilevu, Ra
Collection countryFiji the Fiji Islands
Collection date1956-01-08
Collection notesUnknown slide preparation date
Equatorial view
Polar view
Surface pattern
Wall view
Aperture view
Unique feature