292 FOREST CULTURE AND 
cal Australia. An annual herb, rising under favorable 
circumstances to a height of 10 feet. In our colony, 
Sunn can only be cultivated in the warmest and moist- 
est localities. It comes in four or five months to ma- 
turity. The plant canalso be grown as a fodder-herb 
for cattle. It requires rich, friable soil. Ifa superior 
soft fibre is desired, then the plant is pulled while in 
flower; if strengthis the object, then 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. 
Crotalaria retusa, L.—Asia, America, and Australia, 
within the tropics. A perennial herb. Its fibre re- 
sembles 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. 
Crozophora tinctoria, Necker.—South Europe, North 
Africa, and Orient. An annual herb. The turnsole- 
dye is prepared by exposure of the juice to the air, 
or by treating it with ammonia. 
Cucumis cicatrisatus, Stocks.—Scinde, where it is 
called ‘‘ Wungee.’”? The edible ovate fruit is about 6 
inches long. 
Cucumis citrullus, Seringe. (Citrullus vulgaris, 
Schrader.)—Mediterranean regions. The Water-mel- 
on. It is simply mentioned here to indicate the de- 
sirability of naturalizing it in the interior deserts, 
where no cucurbita and only a single kind of edible 
eucumis (C. acidus, Jacquin), with fruits not larger 
than a pigeon’s egg, is indigenous. In South African 
deserts it has become spontaneously established, and 
retains the characteristics of the cultivated fruit. 
