[HARRISON-SADLER] A BACTERIAL SOFT ROT OF TURNIPS 99 



CRUCIFERAE. 



1. — Stock (Matthiola incana, Br.) 



Softens the epidermal layers to a mucilaginous mass without any 

 discolouration. No effect otherwise. 

 2. — Flaxweed {Sisymbrium Sophia, L.) 



An earthy smell observed, which seemed to be an intensified smell 

 of the culture itself on potato agar. No discolouring or softening. 

 3. — Peppergrass (Lepidium apetalum, Willd.) 



The greenish central portion of the stem very much softened and 

 the cambrium region slightly so, after 21 hours. These conditions 

 much intensified after another 24 hours— the tissues becoming mucil- 

 aginous. 

 4. — Shepherd's Purse {Capsella Bursa-pastoris, Mœnch). 



Slight softening of the epidermis, no effect otherwise. 

 5. — Wormseed mustard (Erysimum cheiranthoides, Linn.) 



Growth of organism over the stem with very slight softening of 

 the wood, but the epidermis attacked vigorously and softened to a 

 mucilaginous mass. 

 6. — Wild mustard (Brassica Sinapistrum, Boiss.) 



The epidermal layer and the central portion at the crown softened 

 badly without any discolouration or bad smell. White filmy growth 

 over the crown. 

 7,. — Tansy mustard {Sisymbrium incisum, Engelm.) 



Attacked vigorously, softening the epidermal layers and the portion 

 at the crown to a pulpy mass. In younger parts the whole is softened. 

 8. — Rape {Brassica Napus, Linn.) 



Extensive softening of the greenish central portion at the crown, 

 also in the region between the woody part and the epidermis, after 16 

 hours. Further intensified by another 24 hours. 

 9. — Sweet Alyssum {Alyssum jnaritimum, Lam.) 



Central greenish portion of the stem softened, also much softening 

 of the root and stem epidermis. 

 10. — Watercress {Nasturtium officinale, R. Br.) 



Practically no action, just a slight softening of the central pithy 

 portion. 



COMPOSITAE. 



1. — Dandelion {Taraxacum officinale, Weber.) 



Attacks it vigorously, forming in the older roots a greenish mass 

 in the centre, and causes the central portion to curl, soften and shred 

 longitudinally. A musty smell is also noticeable. In younger portions 

 it softens the whole crown and root without discolouration. 



