Naturalisation in Extra-Tropical Countries. 133 



Cochlearia officinalis, Linn6. 



The Scurvy-cress. Shores of Middle and Northern Europe, 

 Northern Asia and North-America, also on saline places iulaud even 

 on the Pyrenees. A biennial herb, like the allied C. Angelica and 

 C. Danica (Linne), valuable as an antiscorbutic, hence deserving 

 naturalisation. It contains a peculiar volatile oil. 



Cocos australis, Martius. 



From Brazil to Uruguay and the La Plata-States. One of the 

 hardiest of all palms, hardier than even the Date-palm, withstanding 

 unprotected a cold, at which oranges and almonds are injured or 

 destroyed. It remained perfectly uninjured at Antibes at a tem- 

 perature of 15 F. [Naudin]. C. pityrophylla ascends the Andes to 

 7,800 feet (Count de Denterghem). 



Cocos flexuosa, Martius. 



Brazil, extending far south. This slender and rather tall decorative 

 Palm belongs to the dry Cactus-region with C. coronata, C. capitata, 

 Astrocaryum campestre, Diplothemium campestre and Acrocomia 

 sclerocarpa (Martius). It becomes a stately plant in a few years, and 

 produces seeds most freely. Cocos coronata withstood at Hyeres a 

 temperature of 22 F. [Bonnet]. 



Cocos plumosa, Loddiges. 



South-Brazil. This splendid Feather-palm attains a height of 

 60 feet. It is one of the hardiest of all palms, requiring no protec- 

 tion at Port Phillip. Quick of growth and particularly handsome in 

 stature. Stem comparatively slender. 



COCOS regia, Liebmann. 



Mexico, up to 2,500 feet. A Palm of enormous height ; almost 

 sure to prove hardy in the mildest extra-tropic latitudes. 



Cocos Romanzoffiana, Chamisso. 



Extra-tropic Brazil. This noble palm attains a height of 40 feet. 



Cocos Yatay, Martius. 



Rio Grande do Sul, Uruguay and Argentina. Forms distinct 

 forests mainly with C. australis and C. Datil (Drude). The last 

 mentioned bears date-like fruits, according to Dr. Lorentz. The 

 kernels of the nuts of C. Yatay are edible. The leaves, like those 

 of many other palms, serve for the manufacture of hats. The 

 incomparably valuable strictly tropical Cocoanut-palm, Cocos nucifera 

 (Linne), has fruited at the verge of the tropic in Queensland at 

 Rockhampton under the care of Mr. J. S. Edgar. 



