718 THE BOTANY OF BERMUDA. 
Cereus triangularis, Haw. Night-flowering cereus. 
C. grandiflorus, Haw. 
Both common in gardens. From cereus, a torch. 
Opuntia Tuna, Mill. Prickly pear. 
Native, being mentioned as early as 1610. To be found everywhere. 
From Opus, a city in Greece, where it abounded. 
O. 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. 
O. 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: Opuntia dejecta, Salm; O. flavicans, Lemair; O. integrifolia, 
O. longifolia, O. megacantha, Salm.; O. tomentosa, Salm. 
Pereskia 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. Bleo, DC. 
A red-flowering variety, in some gardens; originally from Mexico. 
LIL.—FICcOIDEzA. 
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. acinaciformum, DC. M. heteropetalum, Haw. 
candens, Haw. multifiorum, Haw. 
depressum, Haw. uncatum, Salm. 
edule, Linn. vaginatum, Lam. 
