Joseph Ewan

Hortus botanicus

Humboldt and American botany

A review of the genus Githopsis

Nuttall's diary of 1810 and som inquirendae

Tyler Whittle, The plant hunters

Taxonomic History of Perennial Southwestern Datura meteloides

James Trudeau and the recent discovery of a collection of paintings of eggs of North American birds

Cantillas Canyon of Lower California

Five pupils of Benjamin Smith Barton

A synopsis of the North American species of Delphinium

The correct name for the Pacific involucrate Trifolium

John Goldie and the republication of his diary

Andrew Alverson (1845-1916) of California and his cactus catalogue

First illustrations of ferns from Peru and Chile

Willis Linn Jepson

Ferns of Pico Bolivar and the sources of the Venezuelan Flora

Opportunities in botanical history

Colombian species of Spigelia

Russian botany

Analytical index to Darlington's Memorials of Bartram and Marshall (1849)

Taxonomic Notes on Various Species of Musaceae, Marcgraviaceae, Guttiferae, and Solanaceae of Colombia

Annotations on west American Ferns

A Review of the North American Weedy Heliotropes

A review of the neotropical lisianthoid genus Lagenanthus (Gentianaceae)

Silk culture in the colonies

Historical problems for the working taxonomist

L'activité des premiers exploraeurs francais dans le S.E. des Etats-Unis

An introductory bibliography to the botany of South America and adjacent islands

San Francisco as a Mecca for Nineteenth Century Naturalists

Early American botany

Frederick Pursh, 1774-1820, and his botanical associates

Josiah Hale, M.D. - Louisiana botanist. Chronology

Modern taxonomy

The genus Delphinium in North America

Scientific American

Asplenium septentrionale in California

Arthur Robert Steele

Botanical Explorers of Colorado -

Smellie's Philosophy of natural history, Harvard's biology classes and Biocaenosis

Bernard M'Mahon (c. 1775-1816), pioneer Philadelphia nurseryman, and his American Gardener's Calendar

Juncus mertensianus and its austrolimital segregate, J. duranii