Literature Cited
- 1910. Hedgcock, G. C. Field studies of the crown gall and hairy root of the apple tree. U. S. Dept. Agric. Bur. PI. Ind. Bull. 186: 1–108. pl. 1–10.
- 1921. Levine, Michael. Studies on plant cancers—II. The behavior of crown gall on the rubber plant (Ficus elastica). Mycologia 13: 1–11. pl. 1.
- 1923. Studies on plant cancers—V. Leafy crown galls on tobacco plants resulting from Bacterium tumefaciens inoculation. Phytopath. 13: 107–116. pl. 5–7.
- 1916. Smith, E. F. Crown gall studies showing changes in plant structures due to changed stimulus. Jour. Agr. Res. 6: 179–182. pl. 18–23.
- 1900. Toumey, J. W. An inquiry into the cause and nature of crown galls. Bull. Arizona Agr. Exp. Sta. 33: 7–64. f. 1–31.