Adrian Hardy Haworth: Descriptions of some new Cacti and Mammillariae, recently brought from Mexico by Mr. Bullock of the Egyptian Hall, Piccadilly; and now preserved, with many other very rare Plants in the Nursery of Mr. Tate, in Sloanestreet. In: Philosophical Magazine and Journal. Band 63, 1824, S. 41 (online).
biodiversitylibrary.org
Dr. Pfeiffer: Ueber Lemaire’s Beschreibung einiger neuen Cacteen. In: Allgemeine Gartenzeitung. Band 6, Nummer 18, 1838, S. 142 (online).
