Pollen and Spore Atlas

Cyperus cyperoides CYPERACEAE

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Pollen / Spore Morphologic Type(s) Surface Pattern(s) Equatorial Size Polar Size
min max mean min max mean
pollen inaperturate psilate 30.0 38.0 34.0 25.0

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Aperture Count(s) 4
Exine Type(s) tectate
Pore Colpus(es) 4
Morphology Notes Periporate. Pore aperture irregular,often broken and poorly defined. Tectate/psilate. Exine 1.5um thick. Ovoid to pear shaped. Lacunae length more than 20% of grain.

Ecology and Geography

Plant Type Cotyledon Type Floristic Region(s) Habit Terrestrial(s)
angiosperm monocot Maritime Southeast Asia,
Australia (tropical),
Australia (east coast),
Australia (south coast),
Northwest Pacific,
Central Pacific,
East Pacific Islands,
Other outside Australasia

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Common Name pacific island flatsedge
Habitat Notes Common in wet patches. Can be found in woodland and forest cover as well as open grassy slopes and river banks. Uncommon in disturbed places. Common from sea level to 2000m. Madagascar, the Comoro and Mascarene islands, Africa, Australasia/Pacific and Asia. North slope of Rano Kao, Rapa Nui (Easter Island)found by Skottsberg 1920. Also found in the fossil pollen record of KAO3 Rano Kao. (Gossen,2010).
Herbarium Link:


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Collection Country Eritrea
Collection Notes Ref slide at Univ. of Minnesota #DL6331 (EJ Cushing).