FIBROUS AND TUBERCULATED ROOTS. 137 
in annual plants, and may be well seen in annual Grasses (ig. 
259), and in bulbous plants (jigs. 241 and 242). Coralline 
Root.—This name is applied to a root which consists of a 
number of succulent branches of nearly equal size, and arranged 
like a piece of coral (jig. 260), as in Corallorhiza innata. 
Tuberculated Root.—When some of the divisions of a root 
become enlarged so as to form more or less rounded, oval, or 
ovoid expansions (fig. 261), the root is said to be tuberculated, 
and each enlargement is called a tubercule. Such a root occurs 
in various terrestrial Orchids, the Jalap plant, &c. These 
tubercules should not be confounded with tubers (page 120), 
which have been already described as subterranean modifi- 
Fic. 266. Exe. 267. 
Fie. 265. 
Fig. 265. Moniliform or beaded root.—— Fig. 266. Annulated root 
ot Ipecacuanha ( Cephaélis Ipecacuanha).— Fig. 267. Conical 
root of the common Carrot (Daucus Carota). 
cations of the stem. The presence of buds on the latter at 
once distinguishes them. In many Orchids, as for instance 
Orchis maculata, the tubercules are divided at their extremities, 
so that the whole somewhat resembles the human hand ( Jig. 
262) ; they are then said to be palmated, and the root is also 
thus termed. Or when a number of tubercules arise from a 
common point, as in the Dahlia (jig. 263), and Bird’s-nest 
Orchis (Neottia Nidus-avis), the root is said to be fasciculated or 
tufted. 
When the branches of a root are expanded only at certain 
