Green world

Describes the largest family of flowering plants, the orchid, focusing on habitat, international varieties, pollination and germination, breeding and cultivation, and threats to its survival.

Discusses the characteristics of different kinds of grasslands in the world and describes the structure of grasses, how they grow and develop, the grains they produce, and their importance to animals and humans.

Discusses different types of algae and the uses of algae as a food crop and energy source.

Focuses on varieties and life cycles of mosses and liverworts in different climates and habitats.

Surveys the world of fungi and lichens, discussing such aspects as fungi and decay, parasites, pollution, plant partnerships, edible and poisonous fungi, and antibiotics.

Introduces the conifer and fir trees of the world and discusses products we get from them, acid rain, forest wildlife, and the timber industry.

Describes different types of forests throughout the world and the threats to their survival. Also discusses the importance of trees in producing oxygen and the many products that we get from trees.

Presents an introduction to forestry, explaining what it is, how trees grow, the different types of trees, forest animals, and more.

Presents an illustrated overview of horticulture, covering such topics as the classifications of plants, propagation, landscaping, and also discusses horticulture history and horticultural professions.

Explains how plants gather nutrients, discussing plant structure, the different types of nutrients, and how nutrient deprivation affects plants, and examines the role plants play in the global recycling of nutrients, a process that affects humans.