scientificillustration:

Stapelia variegata&nbsp;by BioDivLibrary on Flickr.
Nicolai Josephi Jacquin Miscellanea austriaca ad botanicam, chemiam, et historiam naturalem spectantia, cum figuris partim coloratis. Vol. I-[II]..Vindobon&aelig;Ex officina Krausiana,1778-1781..biodiversitylibrary.org/page/32723152
