Naturalisation in Extra-Tropical Countries. 147 



Cryptomeria Japonica, D. Don.* 



The Sugi or Japanese Cedar. Japan and Northern China. The 

 largest tree in Japan, the trunk attaining 35 feet in circumference 

 [Rein] and 120 feet in height, rising occasionally even to 200 feet. 

 Stem long, clear, of perfect straightness ; the plant is also grown for 

 hedges ; in Japan it yields the most esteemed timber, scented like 

 that of Cedrela [Christie]. It requires forest- valleys for successful 

 growth. The wood is durable, compact, soft and easy to work ; more 

 extensively utilised in Japan than any other. In the Azores the tree 

 is preferred even to the Pinus Halepensis for timber-culture, on account 

 of its still more rapid growth in that insular climate. Several garden 

 varieties exist. Lives unprotected still at Christiania. Withstands 

 gales. The variety compacta bears the severest winter-cold in Lower 

 Germany [C. H. Koehler]. 



Cryptotaenia Canadensis, Be Candolle. 



Eastern North- America, also Japan. A perennial Pimpinella-like 

 herb, the root of which affords a good kitchen vegetable. 



Cucumis Anguria, Linne. 



Wild in tropical America, but according to Sir Jos. Hooker and 

 Prof. Naudin perhaps of African origin, all other species belonging 

 to the eastern hemisphere. Annual. The fruit serves for pickles. 



Cucumis cicatrisatus, Stocks. 



Scinde, where it is called " Wungee." The edible ovate fruit is 

 about 6 inches long. Deemed a wild form of C. Melo by Cogniaux. 



Cucumis Citrullus, Springe.* (CUrullus vulgaris, Schrader.) 



Indigenous probably only in Eastern- Africa. The water-melon-plant. 

 It is simply mentioned here, to indicate the desirability of naturalis- 

 ing it in any desert. In those of South-Africa it has become spon- 

 taneously established, and retained the characters of the cultivated 

 fruit. The yield is much increased by irrigation; fruits up to 70 Ibs. 

 were obtained on the Murray-River [ClarsonJ. Near the BellendenKer 

 Ranges in Northern Queensland water-melons (of the variety with 

 white seeds black- tipped, introduced by the writer) were raised 

 weighing nearly 30 Ibs., the pulp being very red and exquisitely sweet 

 [Mrs. Gribble]. Under irrigation at Delhi fruits over 200 Ibs. have 

 been obtained [Koenigj. Vilmorin found that the seeds will keep 

 fully six years. 



Cucumis Colocynthis, Linne. (Citrullus Colocynthis, Schrader.) 



From the Mediterranean regions to India. An annual or perhaps 

 also perennial herb. The medicinal extract of colocynth is prepared 

 from the small gourd of this species. Active principle: colocynthin. 

 Botanically allied to C. Citrullus. 



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