78 THE BOTANY OF BERMUDA. 



Cerens triangularis^ Haw. Night-flowering cereus. 



C. grandijlorits, Haw. 

 Both cominou in gardens. From cerens, a torch. 



Opuntia Tuna, Mill. Prickly pear. 



Native, being mentioned as early as IGIO. To be found everywhere. 

 From Opus, a city in Greece, where it abounded. 



0. tomentosa, Salm. Tall prickly pear. 



One aged specimen at Mount Langton is about 15 feet high, and 30 

 inches round the stem. 



O. vulgaris, Haw. 



O. Pes-Corvi, Le Conte. 



0. Ficus Indica, Mill. 



O. coccinellifera. Mill. 



Introduced with a view to the cultivation of the cochineal insect, for 

 which, however, the climate is too wet. 



The following species were introduced at Mount Langton from the 

 Botanical Gardens, Cambridge, Mass., in 1875, and promised to establish 

 themselves: Ojjuntia dejecta, Qslm.', O.Jiavicans,IjeTnsLir; 0. integrifolia, 

 0. JongifoUa, 0. megacmitha, Salm.; 0. tomentosa, Salm. 



Fereskia aculeata, Mill. id. Barbadoes gooseberry. 



Tolerably common in gardens, but not so much so as the agreeable 

 acid of the fruit deserves. It bears very abundantly. 



P. Blco, DC. 

 A red-flowering variety, in some gardens ; originally from Mexico. 



LII. — FlCOIDE^. 



Mesembrianthemum, Linn. 



Of a large number of species for which the writer was indebted to 

 Professor Sargent, of Cambridge, Mass., in 1874, the following were liv- 

 ing and thriving in 1877 : 



M. acinaeiformuni, DC. 

 candeiis. Haw. 

 depressum, Haw. 

 edule, Linn. 



M. heteropetalum. Haw. 

 multiflorum. Haw. 

 uncatum, Salm. 

 vaginatum, Lam. 



