![](http://www.alamy.com/thumbs/6/8C643E6A-A40E-43E6-A1BD-C59A8686AE5B/2TBJ5JF.jpg)
Sorus with sporangia of fern Aspidium sp. Optical microscope X200.
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Photo credit: © José María Barres Manuel / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: asexual, aspidium, botany, fern, micrograph, microphotography, microscope, optical, pteridophyta, reproduction, sori, sorus, sporangia, sporangium