Volunteer Park Conservatory different "Tillandsia" species. The conservatory also displays terrestrial species of the bromeliad family, such as the pineapple (Ananas comosus). A fern is any plant classified in the phylum or division Pteridophyta (also known as Filicophyta), a group composed of roughly 20,000 species. The conservatory's collection features a number of cycads. Other featured plants in the Fern House include a Mexican breadfruit ("Monstera deliciosa") and tropical flowers including passionflower ("Passiflora" sp.) and hibiscus. This house also features bog gardens with a collection of carnivorous plants including Venus fly traps ("Dionaea muscipula"), sundews ("Drosera" sp), pitcher plants ("Sarracenia" sp). This house within
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