Pollen and Spore Atlas

Cyperus polystachyos CYPERACEAE

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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) Grain Arrangement(s)
min max mean min max mean
pollen inaperturate scabrate 20.4 25.3 23.1 20.5 26.9 22.8 circular circular monad

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Aperture Count(s) 2
Wall Evenness(es) even
Wall Thickness 1.64
Columella visible
Morphology Notes Irregular / retangular-cicular in shape. Finely reticulate to scabrate Wall range: 1.11-1.99. (Lacunae irregular and not defined apertures. Periporate, three pores not equatorial. Pore on polar side. Collumnellae under exine. Frustillate. Scabrate pattern. Ref slide #B1004 Belize. Gossen, 2010)

Ecology and Geography

Plant Type Cotyledon Type Floristic Region(s) Habit Terrestrial(s) Habit Aquatic(s)
angiosperm monocot Australia (tropical),
East Pacific Islands
herb emergent

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Common Name bunchy sedge
Ecology Notes Stephens, K. M. and Dowling, R. M. (2002) Wetland plants of Queensland: a field guide. CSIRO Publishing, Melbourne.
Habitat Notes Perrenial Sedge Emergent rhizomatous plant. Occurs on the edges of bodies of water or in seasonally inundated areas (swamps, drainage lines) (Stephens and Dowling, 2002). Found in the fossil record of KAO3 in Rano Kao, Rapa Nui (Easter Island) Gossen, 2010)
Herbarium Link:


Collector Institution ANU Access Code
Anne & Mark Myerscough Charles Darwin University ID by Ian Cowie and Bob Harwood (N.T. Herbarium) 17065

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Collection Site Palmerston, Darwin, Northern Territory
Collection Country Australia
Collection Date 2004-10-27
Institution Link
Collection Method floral reference
Herbarium Sample false
Preparation Method Sample preparation performed at ANU. Sample sent to ANU: 17/11/2004.
Slide Medium glycerol
Microscopic Instrument Zeiss Axio Imager M1
Collection Notes Photographed