Pollen and Spore Atlas

Thespesia populnea MALVACEAE

You might also like to search Google for this species.



equatorial view
equatorial view
polar view
polar view
surface pattern
surface pattern
wall view
wall view
aperture view
aperture view
unique feature
unique feature


Pollen / Spore Morphologic Type(s) Surface Pattern(s) Equatorial Size Polar Size Equatorial Shape(s) Polar Shape(s)
min max mean min max mean
pollen pantoporate echinate 72.5 87.5 80.0 80.0 circular circular

show/hide details…

Aperture Count(s) M
Wall Thickness 2.5
Exine Type(s) tectate
Columella visible
Pore Shape(s) circular
Pore Section(s) with an operculum, sunken pore
Morphology Notes Periporate. 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 Type Cotyledon Type Floristic Region(s) Habit Terrestrial(s)
angiosperm dicot India (tropical),
Maritime Southeast Asia,
Papua New Guinea (lowland),
Australia (east coast),
Northwest Pacific,
Central Pacific,
East Pacific Islands,
Other outside Australasia

show/hide details…

Vegetation Community(-ties) open forest, shrubland
Common Name Milo, Portia tree
Habitat Notes Tropical 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.
Herbarium Link:


Collector ANU Access Code
J.W. Parham 14368

show/hide details…

Collection Site Dobuilevu, Ra
Collection Country Fiji
Collection Date 1956-01-08
Collection Notes Unknown slide preparation date