What’s more psychedelic than Arnold Böcklin? Right on, Böcklin in all caps! Here it’s used compleat with its weird H that follows the fraktur construction and the N with the enlarged lowercase form. Props for replacing the original J-like I with a plain form that performs better in all-caps settings.
The Latin species names are set in the Selectric version of Univers.
This newspaper advert from Ann Arbor Sun, April 22, 1976, likewise uses Arnold Böcklin, in combination with handwritten text. Note the hand-drawn numerals for the zip code.