Oak Park Conservatory groups ("Cereus", "Opuntia", and "Pereskia"), plus succulents including "Agave", "Crassula", succulent euphorbias, "Gasteria", "Haworthia", and "Kalanchoe". Woody plants in this room include olive, etrog, fig, date palm, bay and pomegranate. The conservatory's orchids and ferns collection holds orchids, Australian tree ferns and other tropic and sub-tropic fern species, as well as begonias, "Clivia", Ponderosa lemon, sea grape, "Strelitzia reginae", and "Syzygium". The rainforest collection includes "Anthurium", aroids, banana, cycads, dracaenas, ferns, fig trees, "Monstera deliciosa", palms (lady, fishtail, fan, and Canary Island date), papaya, "Peperomia", "Pilea", spider plants, as well as a pond with koi, goldfish, and turtles. In addition
Monstera deliciosa for humans. Forcing a "M. deliciosa" to flower outside of its typical tropical habitat proves to be difficult. Specific conditions need to be met for the plant to flower. However, in its tropical and subtropical habitat, the plant flowers easily. In these areas where it grows naturally, "M. deliciosa" is considered a delicacy due to its sweet and exotic flavor. Fruits of plants of the Araceae (Arum family) often contain Raphides and Trichosclereids – needle-like structures of calcium oxalate. In "M. deliciosa," unripe fruit containing these needle-like crystalline structures can cause irritation of the mouth. The fruit first shows signs