Taxonomic studies on the genus echium.
Gibbs, P. E.(Peter E.),author.
Taylor, George,1904-1993,former owner.StEdNL
Stanley Smith Horticultural Trust,former owner.StEdNL
Title and statement of responsibility from page 27.
Reprint from Lagascalia, v. 1, 1971.
Includes bibliographical references (page 80) and index.
Echium