Heteropogon contortus POACEAE

Sample information

Sample ID11-57-1a
Common nameblack spear grass


Pollen / Sporepollen
Morphologic typemonoporate
Surface patternreticulate
Equatorial sizemin 42.2, mean 49, max 53.7
Equatorial shapecircular
Grain arrangementmonocot
Aperture count1
Pore surface shapecircular (with annulus)
Wall thickness2.37
Wall evennesseven
Dispersal formmonad
Morphology notesPore (3.42-5.07) and with annulus 10.57um (9.64-11.43). Wall thickness (1.87-2.70). Faint reticulation,

Ecology and Geography

Plant typeangiosperm
Floristic region(s)Australia (tropical) , Australia (east coast)
Vegetation communitieswoodland, open forest
Ecology notesWaters, C., Whalley, W. and Huxtable, C. (2001) Field crops and pastures. New South Wales Department of Primary Industries (Agriculture), Sydney.
Habitat notesTypical species of Australian tropical and subtropical tall grass vegetation. Understorey to eucalypt woodland and open forest. Most abundant under average annual rainfall of 600 - 1000mm, with marked wet/dry seasons (Waters et. al., 2001).


CollectorFay Johnston & David Bowman
InstitutionCharles Darwin University
ANU access code17343
Collection methodfloral reference
Herbarium sample?False
Collection siteCasuarina Coastal Reserve, Darwin, Northern Territory
Collection countryAustralia
Collection date2004-05-15
Collection notesKimberley Region, Western Australian Pollen Flora
Equatorial view
Polar view
Surface pattern
Wall view
Aperture view
Unique feature