In 1929, Friedrich Ritter and Dore Strauch arrived in Guayaquil from Berlin to settle on Floreana, and sent messages back encouraging others.
However, a few species, notably M. oreodoxa and M. madisoniorum have actinomorphic flowers and were placed in a separate genus - Eomatucana - by F. Ritter.
It was later described as Notocactus tenuicylindricus by Friedrich Ritter.
Friedrich Nietzsche | Friedrich Schiller | Friedrich Engels | Lawrence Ritter | Tex Ritter | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Friedrich Hayek | Caspar David Friedrich | Georg Wilhelm Friedrich Hegel | Friedrich Hölderlin | Friedrich Gustav Jakob Henle | Friedrich Ebert | Josh Ritter | John Ritter | Friedrich Wilhelm Joseph Schelling | Karl Wilhelm Friedrich Schlegel | Jason Ritter | Friedrich Gulda | Friedrich Rückert | Friedrich Paulus | Johann Friedrich Böttger | Friedrich von Huene | Friedrich List | Friedrich | Christian Heinrich Friedrich Peters | Johann Friedrich Blumenbach | Friedrich Wilhelm Freiherr von Bülow | Friedrich Specht |