Australasian
Pollen and Spore Atlas
 

Marianthus ringens PITTOSPORACEAE

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Code118-3-5

Images

equatorial view
equatorial view

Morphology

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,
tricolpate,
heterocolpate
reticulate 18.5 21.0 20.0 17.0 21.0 18.0 oblate,
prolate
triangular (convex) monad

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Wall Thickness 1.8
Morphology Notes Tricolporate, tricolpate; some grains heterocolpate. Oblate spheroidal to prolate spheroidal in ev, rounded triangular in pv. 20 (18-21) x 18 (17-21). Exine 1.2-1.8, sexine = nexine; reticulate with units smaller toward apertures.



Ecology and Geography

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

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Herbarium Link: http://www.anbg.gov.au/cpbr/herbarium/index.html



Collection

Collector ANU Access Code
Hartley No TGH 9742 2732

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Collection Site Morobe Province, Lae District, northeast of Lae
Collection Country Papua New Guinea
Collection Notes scanned card