Plants

Palm trees of the Amazon and their uses

The Study of Plant Life

The Botanical Lore of the California Indians with Side Lights on Historical Incidents in California

A Synopsis of the British Mosses

Identification of the Larger Fungi

Ferns of Hawaii National Park

Fossil Forests of the Yellowstone National Park

Spring in a Shropshire Abbey

Flower Guide: Wild Flowers East of the Rockies (Revised and with New Illustrations)

Eye Spy: Afield with Nature Among Flowers and Animate Things

Young Folks' Nature Field Book

Language of Flowers

Plant Lore, Legends, and Lyrics. Embracing the Myths, Traditions, Superstitions, and Folk-Lore of the Plant Kingdom

Origin of Cultivated Plants

Street Trees

History of Botany (1530–1860)

The Wild Flowers of California: Their Names, Haunts, and Habits

Fruits of the Hawaiian Islands

Forestry for Farmers

The Daffodil Fields