Australasian
Pollen and Spore Atlas
 

Waltheria indica STERCULIACEAE

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Code180-19-2a

Images

equatorial view
equatorial view
polar view
polar view
surface pattern
surface pattern
wall view
wall view
aperture view
aperture view
unique feature
unique feature

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 zonocolporate reticulate 42.7 54.7 47.2 41.6 54.0 47.1 circular circular monad

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Aperture Count(s) 4, 5
Surface Pattern 'reticulate':
Murus Formation 3
Murus Complexity(-ties) simplicolumellate
Wall Evenness(es) even
Wall Thickness 3.69
Pore Shape(s) elliptic (broad)
Colpus Length(s) 1/3
Morphology Notes Pores transversally elliptic across short copli. Wall thickness 3.46 - 4.03; sexine thicker than nexine.



Ecology and Geography

Plant Type Cotyledon Type Floristic Region(s)
angiosperm dicot Australia (tropical)

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Vegetation Community(-ties) herbland, shrubland
Common Name wanderrie grass
Ecology Notes Synonym: Waltheria americana Possibly an pantropical weed, American in origin (see, Wagner, W .L., Herbst, D. R. and Sohmer, S. H. (1999) Manual of flowering plants of Hawai'i Revised Edition. University of Hawai'i Press, Honolulu).
Habitat Notes Variety of substrates, often near water sources.
Herbarium Link: http://www.anbg.gov.au/cpbr/herbarium/index.html



Collection

Collector Institution ANU Access Code
Anne & Mark Myerscough Chareles Darwin University 17301

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Collection Site Casuarina Coastal Reserve, Darwin, Northern Territory
Collection Country Australia
Collection Date 2004-06-17
Institution Link http://www.cdu.edu.au/
Collection Method floral reference
Herbarium Sample false
Herbarium Notes Identified by Bob Harwood (N.T. Herbarium)
Preparation Method Sample preparation performed at ANU. Sample sent to ANU 22/07/2004.
Slide Medium glycerol
Microscopic Instrument Zeiss Axio Imager M1
Publication Information Synonym: Waltheria americana. Erdtman (1952) Pollen Morphology and Plant Taxonomy: Angiosperms (an introduction to palynology 1) Hafner Publications, New York. (describes the pollen of W. americana).
Collection Notes Kimberley Region, Western Australian Pollen Flora. Also found in Diego Garcia, Indian Ocean.