Pollen and Spore Atlas

Mitragyna speciosa RUBIACEAE

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Pollen / Spore Morphologic Type(s) Surface Pattern(s) Equatorial Size Polar Size Equatorial Shape(s) Polar Shape(s) Grain Arrangement(s)
min max mean min max mean
pollen tricolporate reticulate 13.0 15.0 14.0 12.5 16.0 15.0 oblate triangular (convex) monad

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Surface Pattern 'reticulate':
Murus Formation 3
Wall Thickness 1.2
Pore Shape(s) circular, lalongate
Morphology Notes Tricolporate. Oblate spheroidal in ev, rounded triangular in pv. Pore circular to slightly lalongate, located within colpus. 14 (13-15) x 14 (12-16). Exine 1.2, retipilate/reticulate.

Ecology and Geography

Plant Type Cotyledon Type Floristic Region(s)
angiosperm dicot Papua New Guinea (lowland)

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Habitat Notes Tree 42ft tall
Herbarium Link:


Collector ANU Access Code
Pullen 7441 3077

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Collection Site Lower Strickland River, Western District
Collection Country Papua New Guinea
Collection Altitude 6.096