132 CEOWN-GALL OF PLANTS. 



TURNIP NO. 1. 



Size 0.4 to 0.5 by 1.0 to 2,2/i. A common length is 1.6/^. Patho- 

 genicity not yet estabhshed. Tests made on sugar beets failed. 



Add fast. — Negative. Agar 5 days. 

 Gram's stain. — Negative. Agar 2 days. 

 Flagella.— Volar, 1 to 2. Pitfield's stain. 

 Spores. — Negative. 



TTJRNIP NO. 2. 



Fresh isolation in July, 1910, from another gall on same plant, 

 which had been kept alive in tlie hothouse. Growth on agar stroke 

 resembled daisy; also the colony on agar plate. Not tested on plants. 



Acidfast. — 

 Gram's stain. — 

 Flagella. — 

 Spores . — Negative . 



SALSIFY. 



Size 0.4 to 0.5 by 1.2 to 2.0//. Rather slender, single, in pairs or 

 4's, end to end. Many of the rods are 1 .5 to 1.8/j. long. Beets inocu- 

 lated unsuccessfully ; pathogenicity not yet established. 



Add fast. — Negative. Agar 5 days. 

 Gram's stain. — Negative. Agar 3 days. 

 Flagella. — Unable to stain. 

 Spores. — Negative. 



PARSNIP. 



Size 0.4 to 0.8 by 1.0 to 2.4/x. Rarely as long as 2.4/i. Most about 

 1.2 to 1.5// long, but frequently 1.8/(. A well-developed pair meas- 

 ured .3.2/i. Single, in pairs, or in 4's, rarely 8, end to end." Rods 

 frequently somewhat pointed at the ends. Beets inoculated unsuc- 

 cessfully ; pathogenicity not yet proved. 



Add fast. — Negative. Agar 5 days. 

 Gram's stain. — Negative. Agar 3 days. 

 Flagella.— ToUr, 1 to 2. Pitfield's stain. 

 Spores. — Negative. 



a Short filaments were found in agar streaks when 19 days old. 

 213 



