The previous page is sending you to https://www.alamy.com/smithsonian-miscellaneous-collections-recent-algae-1-nostoc-sphaericum-vaucher-2-nostoc-pruniforme-linn-agardh-3-dasya-glbbesii-harvey-smith80nian-miscellaneous-collections-vol-67-no-6-pl-64-image371942696.html.

 If you do not want to visit that page, you can return to the previous page.