Botany & Horticulture in 1964
Entwicklungsanatomische Und Vitalfärbe-Studien an Luftwurzeln Einiger Tropischer Orchideen
by
Kuttelwascher, Heide
Ecology of Plant Galls
by
Mani, M. S.
A Selected Guide to the Literature of the Flowering Plants of Mexico
by
Langman, Ida Kaplan
The Natural Geography of Plants
by
Gleason, Henry, Cronquist, Arthur