Flowering plant magnoliid (2%) clades. The remaining 5 clades contain a little over 250 species in total; i.e. less than 0.1% of flowering plant diversity, divided among 9 families. The 43 most-diverse of 443 families of flowering plants by species, in their APG circumscriptions, are Of these, the Orchidaceae, Poaceae, Cyperaceae, Araceae, Bromeliaceae, Arecaceae, and Iridaceae are monocot families; Piperaceae, Lauraceae, and Annonaceae are magnoliid dicots; the rest of the families are eudicots. Double fertilization refers to a process in which two sperm cells fertilize cells in the ovule. This process begins when a pollen grain adheres to the stigma of the
Cattleya amethystoglossa The lip is bright magenta in color and partially wraps around the column. The throat varies in color from white to pale yellow or gold. Flowers are produced from late fall to early spring. "C. amethystoglossa" grows best in intermediate or warm growing conditions. This species is closely related to "C. guttata" in many ways but differs in flower color and other minor botanical details. There have been a few coerulea and alba forms found in the wild. There are several synonyms for this species: "Cattleya amethystoglossa" var. "lilacina", "Cattleya guttata keteleerii", "Cattleya guttatta lilacina", "Cattleya guttata prinzii", "Cattleya guttata"