II. Form, tye. 



L. FIBROUS, (fibrosa,') Plate 1, fig. 1. consisting of 

 fibres either simple or branched, which convey nour- 

 ishment directly to the basis of the stem or leaves. 

 Ex. Many of the grasses, as Poa annua. 



Observation. This is the most simple in its nature of all roots, 

 and belongs principally to plants that require but a slight support, 

 such as most annual herb* 



2. REPENT, (repens.') PL 1, fig. 2. A creeping root. 

 A kind of subterraneous stem creeping and branching 

 horizontally and throwing out fibres as it goes. Ex. 

 Mint, (Mentha.') 



Observation. Plants furnished with a creeping- root are multi- 

 plied by their roots in such a manner as frequently to occur in beds 

 of greater or less extent. 



S. FUSIFORM, (f us if or mis.} PL 1, fig. 3. A spin- 

 dle-shaped or tapering root, thick at the top and tap- 

 ering downwards to a p,;inU Ex. Carrot, Parsnip, 

 Kadish. 



Observation. The fusiform root descends perpendicularly and 

 throws qut fib.'es or radicles from various parts. 



4. ABRUPT, (jmzmorsm?) PL 1 , fig. 4. Appearing 

 as if the end was hi I ten off. Ex. Devil's bit, Liutris. 

 Birdsfoot Violet, Viola petiata. 



5. TUBEROUS. (tuberosaS) PI. 1, fig. 5. Composed 

 of tubers. It is of many different kinds. The most 

 genuine consists of fleshy knobs various in form, con- 

 nected by common stalks or fibres, as in the Potatoe, 

 Solatium tuber osum. 



Species of the Tuberous Root. 



1. Twin, (geminata.) PL 1, fig. 6. Consisting of 

 a pair of globular or oval bodies, tubers. Ex. Orchis. 



2. Palmate, (palmata.') PI. 1, fig. 7. Divided 

 into blunt lobes like fingers. Ex, Orchis macidata. 



Observation. " Of these globular or palmate knobs, one produ- 

 ces the herb and flowers of the present year, withering away towards 



