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 aclandiae found growing in the wind southwest of Salvador on elevated plateaus that border the drainage of the Paraguaca River. Its native habitat is seasonally dry forests between 100 and 400 meters in elevation near permanent bodies of water. "Cattleya aclandiae" is compact and only grows tall. The upright, short, cylindrical pseudobulbs have two fleshy leaves at the apex. Sometimes, purple blotches are found on the leaves when the plants are exposed to intense sunlight. Each growth produces between one and three and the flowers are large for the size of the plant. Flowers are substantial, waxy, and long-lived. Flower color