Plants

Plastic-Free Living

The Genus Pinus

Fungi: Their Nature and Uses

Mushrooms of America, Edible and Poisonous

Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument

Fossil Forests of the Yellowstone National Park

The Study of Plant Life

Under the Maples

Grasses: A Handbook for use in the Field and Laboratory

The flowering plants of Africa

The Anatomy of Vegetables Begun

Trees of Indiana

Ferns of Hawaii National Park

How to tell the Birds from the Flowers, and other Wood-cuts

Getting Acquainted with the Trees

Old Fashioned Flowers, and other out-of-door studies

Woodland Gleanings: Being an Account of British Forest-Trees

Ilex Cassine: The Aboriginal North American Tea

The Daffodil Fields

The botanist's repository for new and rare plants; vols 1 & 2