FUNGUS UPON THE ROOT. 489 



and if the tree is taken up, its threads can be seen. 

 It feeds upon the sap, and thus deprives the tree of 

 its proper nourishment. It results from the pres- 

 ence of decaying matter in the soil, or often from 

 the remaining roots of trees of a former generation. 



IV. Diseases Affecting the Tree generally. 

 1. Profusion of Sap. Page 462. 



2. Stagnation of Sap after transplanting — Stagnans 

 elethargia. Page 464. 



3. Vitiation of the Sap — Veneficium. Page 476. 



4. Canker — Carcinodes. Page 465. 



5. Decay — Caries. Page 468. 



6. Freezing — Congelatio. Page 469. 



7. Wind Shakes — Anemosis. Page 472. 



8. Dropsg — Anasarca. Page 473. 



9. Sun-stroke — Desiccatio. Page 473. 



10. Wounds — Vulnera. Page 474. 



11. Lichens. Page 475. 



