A Critical Study of Certain Epappose Genera of the Heliantheae-Verbesininae of the Natural Family Compositae
Published in Annals of the Missouri Botanical Garden, in 1935, in volume 22, pages 51-152
Date published:1935
Published in Annals of the Missouri Botanical Garden, in 1935, in volume 22, pages 51-152
Date published:1935