146 Select Plants for Industrial Culture and 



C. Alatavicus (Regel) is the first of the winter-flowering species 

 [Backhouse]. The bulbs of several are edible. See also Maw's 

 splendid work, specially devoted to this genus. 



Crotalaria Burhia, Hamilton. 



Beloochistan, Afghanistan, Scinde. This perennial herb grows in 

 arid places, and like the following yields Sunn-fibre. 



Crotalaria juncea, Linn.* 



The Sunn-Hemp. Indigenous to Southern Asia and also widely 

 dispersed through tropical Australia. An annual herb, rising under 

 favorable circumstances to a height of 10 feet. In the colony of 

 Victoria, Sunn can only be cvltivated in the warmest and moistest 

 localities. It comes to maturity in four or fi>e months. The plant 

 can also be grown as a fodder herb for cattle. It requires rich, 

 friable soil. Not an exhaustive crop. If a superior soft fibre is 

 desired, the plant is pulled while in flower ; if strength is the object 

 the plant is left standing until it has almost ripened its seeds. The 

 steeping process occupies about three days. For the purpose of 

 obtaining branchless stems it is sown closely. The fibre is employed 

 for canvas, sacking, ropes and cordage. Average yield 650 Ibs. per 

 acre. Cultivated in the Circars, according to Roxburgh, to feed 

 milch-cows. 



Crotalaria retusa, Linn6. 



Asia, America, and Australia within and near the tropics. A. 

 perennial herb. Its fibre resembles that of C. juncea, and is chiefly 

 used for ropes and canvas. Others of the multitudinous species of 

 Crotalaria deserve to be tested for their fibres. 



Croton lacciferus, Linn. 



Ceylon, up to 3,000 feet. Valuable for the warmer forest-regions 

 of temperate climes, on account of its peculiar exuding lac-resin. 







Croton Tiglium, Linn. 



Insular and Continental India, extending to China. A small tree. 

 The very powerful purgative Croton-oil is expressed from the seeds. 

 The plant bears prolifically in the northern part of N.S.W. 



Crozophora tinctoria, Necker. 



South-Europe, North- Africa and the Orient. An annual herb. 

 The turnsole-dye is prepared by exposing the juice to the air, or by 

 treating it with ammonia. 



