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Annals of Botany 87: 109-116, 2001
© 2001 Annals of Botany Company

Starchy Pollen in Commelinoid Monocots

Scott Zona+

Fairchild Tropical Garden, 11935 Old Cutler Road, Coral Gables, Miami, FL 33156, USA* Department of Biological Sciences, Florida International University, Miami, FL 33199, USA

Received: 12 July 2000 ; Returned for revision: 7 September 2000 . Accepted: 27 September 2000

The Commelinoid monocots are a monophyletic group comprising the Arecales, Commelinales, Poales and Zingiberales, plus the unplaced family Dasypogonaceae. Pollen from 149 taxa was examined qualitatively for starch as the primary storage product. Starchy pollen was found in 134 taxa (90% of the sample) of Commelinoid monocots. Starchy pollen thus appears be a characteristic feature of the Commelinoid monocots. Starchy pollen can be easily observed with minimal preparation, making it a demonstrable character useful in the classroom or teaching laboratory. Furthermore, starchy pollen grains were found to be significantly larger in diameter than non-starchy grains, confirming previous hypotheses regarding pollen size and starch. Copyright 2001 Annals of Botany Company

Arecales, Commelinales, Commelinoid monocots, Monocotyledonae, Poales, pollen, starch, Zingiberales


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Y.-Q. WANG, D.-X. ZHANG, and Z.-Y. CHEN
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