The evolution and classification of flowering plants

Intermountain Flora; Vascular Plants of the Intermountain West, U.S.A., (Intermountain Flora)

Vascular Flora of the Southeastern United States: Vol. 1

Intermountain Flora Vol. 3, Pt. A

Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A, Vol. 3

An Integrated System of Classification of Flowering Plants

Intermountain Flora Vol. 4

Mexico, 1962, [numbers 9804-9843]. Arizona, California, Nevada, 1964, [numbers 9884-9923]; 582

Oregon, Idaho, 1959, [numbers 8355-8405]; 567

Utah, 1961, [numbers 9005-9103]; 572

Oregon, Idaho, Wyoming, Utah, 1959, [numbers 8798-8820]. Costa Rica, 1960, [numbers 8821-8859]; V. 569 (1959)