Books by Armen Takhtajan

and class Liliopsida (or Monocotyledons) includes 4 subclasses, 31 orders, 120 families, more than 3,000 genera, and about 65,000 species.This book contains a detailed description of plant orders, and descriptive keys to plant families providing characteristic features of the families and their differences.

Explores the evolutionary trends in each major flowering plant part-vegetative organs, flowers and inflorescences, fruits, and seeds. Examines microsporangia, microspores, and pollen grains as well as megasporangia, mega-spores, and the ovule, and covers evolutionary trends in pollination, fertilization, and triple fusion.