AND ITS DIFFERENT KINDS. Ill 



having, as mentioned above, so many pairs 

 of roots, the growth of some of which is 

 always going on, lias hitherto not been 

 ioLind to survive transplantation at all. 



Iristuberosa, Sm. Fl. GrcEc, Sibth. t, 41, 

 has a root very analogous to tliese just 

 described, but I.florcntina and /. germa- 

 nica, t, 39 and 40 of the same work, have 

 more properly creeping roots, though so 

 thick and fleshy in their substance, and 

 so slow in their progress, that they are 

 generally denominated tuberous. 



6. Radiv hulhosa. A Bulbous Root, properly 

 so called, is either solid,/. 13, as in Crocus, 

 Lria, Gladiolus, Sec; tunicate, ^1 14, tuni- 

 ca t a, composed of concentric layers enve- 

 loping one another as in Allium, the Onion 

 tribe; or scaly,/. 15, consisting of fleshy 

 scales connected only at their base, as in 

 Lilium, the White or Orange Lily. The two 

 latter kinds have the closest analogy with 

 leaf-buds. They are reservoirs of the vital 

 powers of the plant during the season when 

 those powers are torpid or latent, and in 

 or<ler to perform the functions of roots, they 

 jirst produce fibres, \vhich are the actual 



