Pollen and Spore Atlas

Alstonia spatulata APOCYNACEAE

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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 reticulate 21.0 24.0 23.0 18.0 31.0 25.0 oblate circular

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Wall Thickness 1.8
Morphology Notes Most grains triporate, some tricolporate. Oblate spheroidal in ev, subcircular in pv. 23 (21-24) x 25 (18-31). Exine 1.8, reticulate.

Ecology and Geography

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

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Herbarium Link:


Collector ANU Access Code
T. G. Hartley No 9678 11195

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Collection Site Morobe Province, Lae District, swampy areas in old lake bed between Red Hill and Lake Wanum about 15 miles west of Lae
Collection Country Papua New Guinea
Collection Altitude 45.72