The book Cereus Grandiflorus and Cereus Bonplandii by Richard E. Kunzé, published in 1876, offers a comprehensive exploration of two notable cacti species, focusing on their botanical characteristics, historical significance, and therapeutic applications. Kunzé, a physician associated with the Eclectic Medical Society of New York, provides insights into how these plants were perceived and utilized in 19th-century medicine.

Cereus grandiflorus, commonly known as the “Queen of the Night,” is renowned for its large, fragrant, nocturnal flowers. Native to the Antilles, Mexico, and Central America, this cactus has been traditionally used for its cardiac benefits. Historical accounts suggest its application in treating heart-related ailments, including palpitations and angina, due to its believed cardiotonic properties. The plant’s constituents, such as alkaloids and flavonoids, were thought to contribute to its therapeutic effects.

Cereus bonplandii, also referred to as Harrisia bonplandii, is native to regions of South America, including Brazil, Paraguay, Bolivia, and northern Argentina. This cactus is characterized by its sprawling growth habit and edible red fruits. In traditional practices, various parts of the plant, including its fruits and roots, were consumed by indigenous communities. Additionally, its use in homeopathic medicine has been documented, particularly for conditions related to the heart and nervous system.

Kunzé’s work reflects the 19th-century medical perspective, emphasizing the integration of botanical remedies into therapeutic practices. His detailed observations and descriptions underscore the significance of these cacti in both traditional and homeopathic medicine, highlighting their potential benefits and applications. This book serves as a valuable historical resource, shedding light on the medicinal use of plants during that era.