Interspecific Transmission of Mosaic Diseases of Plants 19 



TABLE 9. Inoculations on Xicotiana Tabacum 



Mosaic* 



Susceptj source of inoculum 



Number 

 of plants 



inoculated 



A Lycopersicon esculentwn . 



A ; Nicotiana Tabacum. 



A Martynia louisiana 



A Solatium aculeatissimum 



A Solarium tuberosum 



B 



B 



B 



B 



Lycopersicon esculentwm 



Datura Stramonium 



Nicandra Physalodes. . . . 



Nicotiana glutinosa 



B Solznum aculeatissimum . 



B Solatium tuberosum 



C Datura Stramonium . . . 



D. . . Nicotiana glutinosa. - 



Checks . 



Phytolacca decandra 

 Rumex obtusij alius . . 

 Phaseolus vulgaris. . 



4 

 62 



3 



5 

 30 



o 



4 

 4 

 3 

 6 

 37 

 10 

 6 

 9 

 3 

 3 



46 



Number 

 of plants 

 showing 



symptoms 



4 

 58 

 3 

 4 

 23 

 1 





 4 

 

 2 



1 

 1 

 1 

 

 

 



Type of 

 symptoms 

 observed 



; See footnote to table 2, page 13. 



TABLE 10. Inoculations on Phaseolus vulgaris 



Mosaic* 



Suscept, source of inoculum 



A Nicotiana Tabacum. . 



B Solanum tuberosum. . 



C I Datura Stramonium. 



D Nicotiana glutinosa 



E Phytolacca decandra. 



Checks 



f'umcx obtusifolius. 

 Phaseolus vulgaris . 

 Echinocystis lobata . 



Number 

 of plants 

 inoculated 



12 



6 



Number 



of plants 



showing 



symptoms 



Type of 

 symptoms 

 observed 



* Sec footnote to table 2, page \'A. 



