![](http://www.alamy.com/thumbs/6/423C940A-3DBE-407A-A39D-D0DF90003FE3/J57NWP.jpg)
Microscopic view of fern prothallium (prothallus). Upward view. Darkfield illumination.
Size: 3127px × 4724px
Photo credit: © buccaneer / Alamy / Afripics
License: Royalty Free
Model Released: No
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