In this image, the tissue has been cleared making the spores visible through the sporangial wall. Two of the sporangia contain 1-4 large megaspores. Two of the sporangia contain 1-4 large megaspores. The remaining sporangia contain hundreds of microspores.
About The Author
I am particularly interested in macroevolutionary patterns and characters that diagnose large clades of ferns and lycophytes. My field work is centered in Mexico, Colombia, and Papua New Guinea. I am based in the Pringle Herbarium (VT) at the University of Vermont. If you have any ferns that you want identified, please send them to me!
May 18, 2012
September 26, 2022
April 15, 2014
June 25, 2019
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Taxa on this site
Also on FOTW
FOTW VS. WORLDWIDE DIVERSITY
Based on an estimate of 51 families worldwide. Total number of families on this website = 50.
Based on an estimate of 337 genera worldwide. Total number of genera on this website = 287.
Based on an estimate of 11,916 species worldwide. Total number of species on this website = 1550.
Wow! Nice image.