I 
is composed of deciduous leafless shrubs, only relieved by a giant Cereus, forming a singular tree ; 
this generally has a single stem, two or four feet high, by eighteen inches in diameter, when it 
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feet. In May it yields a delicious fruit, called Pitaya, when it is much sought after by the natives. 
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like E. Ackermanni, inhab 
udrum, an Oncidium, Odontoglossum 
g trees. Although I have not seen i 
ther stems, it will Drove a valuable ac 
of plants. 
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°f Hi 
g tribe 
The plant called an Epiphyllum in this extract is what we now represent. It would seem, from 
its being associated with oaks, that it will require no greater protection than a good greenhouse ; and, 
in fact, it proves to be one of the hardier species of its order. Nevertheless, like others of the leafy 
kind, the atmosphere of a stove is best suited to it while making its growth. 
In deference to the opinion of Prince Joseph of Salm-Dyck, we call this a Phyllocactus rather than 
a Cereus ; for it must be owned that, if such genera as Echinocactus, Mammillaria, and Opuntia, 
deserve to be adopted, because of the peculiar form of their stems, so also must Phyllocactus, whose 
jointed stems are very different from the uninterrupted stems of the true Cerei. Under the former 
genus are now collected the following additional species, viz., Cereus phyllanthoides of the Botanical 
Magazine; Epiphyllum Ackermanni of the Botanical Register,- Cereus latifrons of Pfeiffer; and 
Cactus Phyllanthus of Linnaeus ; to which are to be added two new species of Phyllocactus, viz., 
stenopetalus of Salm-Dyck, and grandis of Lemaire. 
Link 
surren 
and , convenience disregard the laws of dogmatists, and refuse to be fettered by maxims which, 
however just and useful in the main, are never to be allowed to bend to expediency. 
The accompanying drawing was made in the Garden of the Horticultural Society last October. 
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