The Development of Flowers

by (author) Richard I. Greyson

Seeds and Fruits of Plants of Eastern Canada and Northeastern United States

by (author) F.H. Montgomery

A Monograph of Chalara and Allied Genera

by (author) T.R. Nag Raj & Bryce Kendrick

Chemotaxonomy of Flowering Plants

Four Volumes

by (author) R. Darnley Gibbs