TY  - BOOK
AU  - Blake,S.F.
TI  - Revisions of the genera Acanthospermum, Flourensia, Oyedaea, and Tithonia,
T2  - Smithsonian institution. United States National museum. Contributions from the United States National herbarium,
AV  - QK1 .U5 vol. 20, pt. 10
PY  - 1921///
CY  - Washington
PB  - Govt. print. off.
KW  - Compositae
KW  - Classification
N1  - "Bulletin of the United States National museum."
ER  -