Botany leaflet ; no. 22
Dahlgren, B. E. (Bror Eric), 1877-1961
Chicago :Field Museum of Natural History,1938.
Fieldiana, Popular series, Botany, was published by Field Museum of Natural History, Dept. of Botany as Leaflet (no. 1-9, 1922-1924), and as Botany leaflet (no. 10-25, 1924-1940), and by Chicago Natural History Museum as Popular series: Botany (no. 26-27, 1947-1950).
QK1 .F43 no. 22
LCCN: s 38000055
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