Pollen and Spore Atlas

Brachychiton diversifolius STERCULIACEAE

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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 tricolporate reticulate 28.7 33.7 30.8 24.2 29.2 26.9 prolate circular monad

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Aperture Count(s) 3
Wall Evenness(es) even
Wall Thickness 2.16
Pore Shape(s) lalongate
Pore Size 3.17 x 2.04
Colpus Length(s) > 2/3
Morphology Notes Wall thickness 1.84 - 2.57. Pore size 2.06 - 4.00 x 1.73 - 2.60. Pore is obvious in transversing the colpus.

Ecology and Geography

Plant Type Cotyledon Type Floristic Region(s) Habit Terrestrial(s)
angiosperm dicot Australia (tropical),
Australia (east coast)

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Vegetation Community(-ties) open forest, woodland
Common Name northern kurrajong lacebark kurrajong
Ecology Notes Brock, J. (2001) Native plants of Northern Australia. Reed New Holland Press, Sydney.
Habitat Notes Located on well drained sites through open forest or woodland, expanding into sparse savanna woodland in dry regions (Brock, 2001).
Herbarium Link:


Collector Institution ANU Access Code
Anne & Mark Myerscough Charles Darwin University 17296

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Collection Site Casuarina Coastal Reserve, Darwin, Northern Territory
Collection Country Australia
Collection Date 2004-09-22
Institution Link
Collection Method floral reference
Herbarium Sample false
Herbarium Notes identified by Ian Cowie (N.T. Herbarium)
Preparation Method Sample preparation performed at ANU. Sample sent to ANU 11/10/2004
Slide Medium glycerol
Microscopic Instrument Zeiss Axio Imager M1
Publication Information Litchfield, W. H. (1966) The pollen morphology of Australian Sterculieae. Pollen et Spores, 8, 439-453. (for additional description and illustration of the Brachychiton genus). Phillips, M. E. (1941) Studies in atmospheric pollen. Med. J. Austr., 2, 189-198. (suggests Brachychiton pollen under-represents source plants).
Collection Notes Kimberley Region, Western Australian Pollen Flora