YElyLOW DISEASE OP HYACINTHS. 



353 



LITERATURE. 



1883. WakkBr, J. H. Vorlaufige Mittheilungen iiber 



Hyacinthenkrankheiten. Botan. Centralblatt, 

 Nov. 1883, Bd. XIV, No. 23 pp. 315-316. 



1884. WakkER, J. H. Het geel-of nieuwziek der 



Hyacinthen veroorzaakt door Bacterium Hya- 

 cinthi Wakker. Onderzoek der Ziekten van 

 Hyacinthen en andere Bol-en Knolgewassen. 

 Verslag over het jaar 1883. Haarlem, Aug. 

 1884, 8 vo., pp. 4-13. I colored plate. 



1885. Wakker, J. H., Het geel-of nieuwziek etc. 



Onderzoek etc., Verslag over het jaar 1884. 

 Haarlem, May 1885, 8 vo. pp. i-ii. [See pre- 

 ceding for full title.] 



1887. Wakker, J. H. Het geel-of nieuwziek der 

 Hyacinthen (Vervolg en slot). Onderzoek, etc. 

 Verslag over het jaar 1885. Haarlem, May 

 1887, 8 vo. pp. 1-5 and 27-37. 



1889. Wakker, J. H. Contributions k la pathologic 

 vegetale: i. La maladie du jaune, ou maladie 

 nouvelle des jacinthes cause par le Bacterium 

 hyacinthi. Archives neerlandaises d. sci. ex. 

 et nat., 1889 T. xxiii, pp. 1-25, i colored 

 plate. 



1889. Trevisan. Genera, p. 19. See also Saccardo's 

 Sylloge Pungorum, Vol. VIII, p. 983. 



1896. Smith, Erwin P., The bacterial diseases of 

 plants: A critical review of the present state 

 of our knowledge. The American Naturalist 



vol. XXX, 1896, Oct., pp. 797-804; Nov., pp. 

 912-924. Also separates. 

 An extended abstract of Dr. Wakker's writings on the yellow 

 disease of hyacinths. The only account in English. 



1897. Smith, Erwin P. Wakker's Hyacinth Bacter- 

 ium. Proc. of the Am. Assoc, for the Adv. 

 of Science, 1897, vol. XLVi, p. 274. 

 a brief preliminary statement of some original work. 



1901. Smith, Erwin F. Wakker's Hyacinth Germ, 

 Pseudomonas hyacinthi (Wakker). Bull. No. 

 26, U. S. Dept. of Agric, Div. of Veg. Phys. 

 and Path., Feb. 12, 1901, pp. 45, 6 text figures 

 and I colored lithographic plate. 

 Deals principally with inoculation experiments and the 

 morphology of the organism, an account of the cultural char- 

 acters being left for the following bulletin. 



1901. Smith, Erwin P. The Cultural Characters of 

 Pseudomonas hyacinthi, Ps. campestris, Ps. 

 phaseoli, and Ps. stewarti — four one-flagellate 

 yellow bacteria parasitic on plants. Bull. No. 

 28, U. S. Dept. of Agric,, Div. of Veg. Phys. 

 and Path., Aug. 6, 1901, pp. 153. 



1908. Bos, J. Ritzema. Instituut voor Phythpatho- 

 logie te Wageningen: Verslag over oderzo- 

 ekingen, etc. in het jaar 1907. Wageningen, 

 1908, p. 1 1. 



The Yellow Disease of hyacinths was reported to Ritzema 

 Bos from Hillegom in variety Innocence, early white, in the 

 middle portion of 25 beds, the hyacinths on the five beds at 

 either end remaining healthy. The hyacinths were propa- 

 gated from sound mother bulbs and the peculiar locaUzation 

 of the outbreak was not explained. 



