Catalogue of marine Polyzoa. London, Printed by the order of the Trustees, 1852-1875, identification, catalogs, classification, bryozoa, cheilostomata, geographical distribution, cyclostomata, bryozoa, This illustration features several detailed botanical studies of *Acanthocereus avicularia*, showcasing different anatomical structures. On the left, a close-up of the plant's stem reveals its distinctive textured surface and growth patterns. The center portion depicts a section where the branching structure emerges, highlighting the plant's unique morphology. To the right, additional detail enhances the understanding of the flower formation associated with the species, illustrating the intricate features of the buds and blossoms. The overall presentation emphasizes the complexity and beauty of this particular cactus species.