Naturalisation in Extra-Tropical Countries. . 231 



surpassed by Dracaena Draco, the Dragon-tree of the Canary- 

 Islands. This is the principal high-stemmed species, the trunk 

 attaining a height of 50 feet, and the huge panicle of flowers 40 

 feet more. It does not die, like allied plants, after flowering. The 

 species is recorded here as a fibre-plant, but should also be culti- 

 vated for its ornamental grandeur. It has flowered 26 feet high in 

 the cool climate of New Zealand. 



Fragaria Californica, Chamisso and Schlechtendal. 



California and Mexico. Closely allied to F. vesca. Strawberries 

 can be preserved by being placed successively in layers of sugar, 

 over which salicylic acid is strewn in the proportion of a teaspoonful 

 to 4 Ibs. of sugared fruit, or the salicylic acid should be added, dis- 

 solved in alcohol. 



Fragaria Chiloensis, Duchesne.* 



Chili- Strawberry In various of the colder parts both of North- 

 and South- America, occurring also in Juan Fernandez, and at 

 elevations between 4,000 and 6,000 feet in Hawaia (Dr. Hille- 

 brand). Almost incredible accounts have been published regarding 

 the yield of the Chiloen Strawberry in the neighbourhood of Brest, 

 far exceeding the fecundity of any other strawberry. 



Fragaria collina, Ehrhart. 



Hill- Strawberry. In various parts of Europe. Cultivated in 

 Norway to lat. 67 56' [Schuebeler] ; may be regarded as a mere 

 variety of F. vesca. Fruit of a somewhat musky odor. 



Fragaria grandiflora, Ehrhart.* 



Ananas- Strawberry. Various colder parts of America. Closely 

 allied to F. Chiloensis. Many of the large-fruited varieties have 

 been derived from this species. The rearing of Strawberries has 

 in California assumed lately such magnitude, that 15,000 cases 

 could be exported already in 1887 from that state [" Journ. Soc. 

 of Arts," xxxix., 78]. At Auckland, N.Z., 200 acres are planted 

 with Fragaria, the daily yield in the season being about 40 quarts 

 on an acre, worth there sixpence each [B. Dawson]. The "Veitch" 

 variety bears well even under the shade of orchard-trees. 



Fragaria Illinoensis, Prince. 



North-America. Hovey's seedling and the Boston-kind from 

 this plant. Is regarded by Professor Asa Gray as a variety of F. 

 Virginiana. 



Fragaria pratensis, Duchesne. (F. elatior, Ehrhart.) 



Cinnamon- Strawberry. " Hautbois." In mountain-forests of 

 Europe. F. moschata (Duchesne) is a variety of this species. The 

 lower portion of the succulent receptacle is seedless. 



