Plants

Forest Trees of Illinois: How to Know Them

The Genus Pinus

Medieval Plants and their Uses

Pacific Northwest Foraging Starter Handbook

Home Gardener's Propagation

Native Flowers of New Zealand

The Life of a Leaf

Discoveries in the Garden

Best Hyperaccumulator Plant from Nature To Clean & Neutralize Radioactive Nuclear Waste

A Specimen of the Botany of New Holland

Pocket Guide to Balsam Bashing

Keys to Fungi on Dung

Lichens

The Barren Ground Caribou of Keewatin

Flowers of Mountain and Plain

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

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

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

Toadstools, mushrooms, fungi, edible and poisonous; one thousand American fungi

Eye Spy: Afield with Nature Among Flowers and Animate Things