The Cultural Characters of Pseudomonas hyacinthi. ?s. campes- 



TRIS, Ps. PHASEOLI, AND Ps. STEWART!, FoUR OnE-FlaGELLATE 



Yellow Bacterl\ Parasitk- n\ Plants 



IXTRODIT-TIOX. 



The morphology and pathogenic properties of Pseudomonas Jiya- 

 cinth) Tvere described by AVakker in 1888-1889.^ and were redescribed 

 by the writer in 18i^7 in Proceedings of the American Association for 

 the Advancement of Science." and in 19(>1 in Bulletin No. 26 of this 

 Division.^ 



The moiphology. cultui*al characters, and the pathogenic properties 

 of Psewhnuoiias campestris were tirst established l)y Pammel (in part), 

 in 1895* and were more fully described by the writer in 1897^ and 

 1898/' In 1M*8 they were described also by RusseU and Harding." 



^ (1) Yorlaulige ^littheilungen ul3er Hyacinthenkrankheiten. Botanisches Cen- 

 tralblatt, B<^1. XIV, 18S3, pp. 315-316. (2) Het geel-of nieiiwziek der Hyacinthen 

 ver«x>rzaakt door Bacterium HrfficintM Wakker. Onderzoek der Ziekten van Hya- 

 cinthen, en andere bol-en knolgewassen. A^erslag over het jaar 1883. Haarlem, 

 August,^ 1884. 8vo, pp. 4-13. (3) Onderzoek der Ziekten van Hyacinthen, en 

 andere bol-en knolgewassen. Yerslag over het jaar 1884. Haarlem, May, 1885. 8vo, 

 pp. 1-11. (4) Onderzoek der Ziekten van Hyacinthen, en andere lx)l-en knol- 

 gewassen. Verslag over het jaar 1885. Haarlem. May, 1887. 8vo, pp. 1-5 and 27- 

 37. (5) Contributions a la pathologic vegetale: 1. La maladie du jaune on maladie 

 nouvelle des jacinthes, causee par le Bacterium Hyacinthi. Archives neerlandaises 

 d. Soi. ex. et nat., Tome XXIII, 1S89, pp. 1-25, pi. 1. 



- Wakker's Hyacinth Bacterium. Proceedings of the Amer. Assoc, for the Adv. of 

 Sci.. 1897, p. 274. 



'Wakker's Hyacinth Germ, Pseudomonas hyacinthi (Wakker). Washmgton, Gov- 

 ernment Printing OflBce, 1901, pp. 45, 1 pi., 6 text figs. 



*Bacteriosis of Rutabaga {BacUhis campestris n. »p.). Bull. Xo. 27, Iowa Exp. 

 Station, Ames, Iowa. 1895, pp. 130-135. 



^ (1 ) Science X. S., Vol. V, June. 1897. p. 963. Abstract of a paj^er read before the 

 Biological Society of Washington, May, 1897. (2) Pseudomoiuis campestris (Pam- 

 meH. The cause of a brown rot in cruciferous plants. Centralbl. f. Bakt. 2. Abt., 

 Bd. Ill, July, August, and September, 1897, pp. 284, 408, 478, 1 pi. 



« (1) The black rot of the cabljage. U. S. Dept. of Agr. Fanners' Bulletin Xo. 68, 

 Jan. 8, 1898. (2) Additional notes on the bacterial brown rot of cabbages. Bot. 

 Gaz., vol. 25, pp. 107-108. Amer. Xat. Xo. 32, p. 99. Both abstracts of a paper 

 read l^efore See. for Plant Morphology- and Physiology in December. 1897. 



' A bacterial rot of cabbage and allie<l plants. Wis. Ex]>. Station Bull. N<t. 65, 

 Feb., 1898. (Issued in March.) 



