20 



found that the troulDle with old, non-productive trees lies in 

 the root system, or in tj-t. raanagement of soil on- in bot?!. 

 Thorough investigation of roots and soils should "be made before 

 any severe cutting or pruning of top is resorted to. 



Except as noted above, all trees should be trained low 

 for protection ag.ainst frost, heat and vjind, and to aid the 

 gatherin? o£ fruit. Heavily laden branche-.s are generally 

 propped to prevent breakinf^ do-\vn, as the loss frorri dropping 

 and splitting is so great that the tiees cannot be safely 

 lightened by thinning of fruit when small. 



Citron, Citrus raedlca (Linn.) 

 Descriptio n and habita t 



Young shoots glabrous purple, leaflets glabrous, flowers 

 often unisexual, petals generally more or less pink, fruit 

 gjobose ovoid or oblong, often marnillate at the apex. 



Valleys along the foot of the Himalayas from Garv/hal to 

 Slkkim, ascending to 4,000 feet, the Khasla Mts.j Garrow Mts.; 

 Chlttag-ong, Vi^estern Ghats and Satpura range in Central India. 



A shrub or small tree, flowering and fruiting at most 

 seE^sons, growing when Hooker found it on steep hillsides (in 

 Slkklm) . Leaflet 3-5 Inches, elliptic ovate or ovate lance- 

 olate ; petiole naked or winged. Flowers 5-10 In a raceme, 

 small or middle sized. Stamens 20-40. The following are 

 the principal varieties, of which Hooker found one truly wild 

 In Sikkim, with an oblong leaflet 4 In. long, margined petiole. 



