Vascular plants of the Pacific Northwest /

Mode of access: Internet.

The role of aquatic vascular plants in the eutrophication of selected lakes in western Massachusetts

"A project supported under Section 100, Water resources research act of 1964 (p. L. 88-379."

Lists of publications of value to students of the taxonomy of vascular plants of North America,

Mode of access: Internet.

New manual of botany of the central Rocky Mountains (vascular plants)

Mode of access: Internet.

Endangered, vulnerable rare and extirpated vascular plants in Illinois : interim list of species, October, 1976 /

Caption title.

Vascular plants of Illinois,

Bibliography: p. 537-556.

New records for Illinois vascular plants; a compilation

Bibliography: p. 130-131.

The vascular plants of Scott and Muscatine Counties,

Mode of access: Internet.

Enumerantur plantae Dakotae septentrionalis vasculares... Enumeravit J. Lunell. The vascular plants of North Dakota... With notes ...

Reprinted from The American midland naturalist, v. 4-5, 1915-1917.

A census of New South Wales plants,

"Explanation of abbreviations of titles of works quoted": p. xi-xx.