BIOL 2004 Lecture 10: Diversity of Flowering Plants I (end), Diversity of Flowering Plants II
12 Feb 2017
School
Department
Course
Professor
Document Summary
Lecture 10 - diversity of flowering plants i (end), diversity of flowering plants ii. Consists of monocots and form the largest family of plants. Most orchid flowers are bilaterally symmetrical and have three or fewer of each type of modified. Species estimates range between 20,000 and 38,000 leaf. Petals are large and showy to attract pollinators. Fruit is a capsule and contain seeds that have no endosperm: capsule - open spontaneously at maturity to release seeds, no endosperm because the seed is very small. Orchid mycorrhiza - rhizoctonia: to grow orchids, seeds are mixed with rhizoctonia fungus to form a symbiotic relationship (seeds get food from fungus, but we don"t know what the fungus benefits from) Largest family of eudicots and the second largest family in the plant kingdom. More than 23,000 species - herbs, shrubs, and trees. Species are found worldwide but especially in temperate regions. Flowers have complex heads that are radially symmetrical.
