18 



PAXTON'S FLOWER GARDEN. 



Epidendrum, an Oncidium, Odontoglossum, and an Epiphyllum, the latter, like E. Acher- 

 manni, inhabiting trees. Although I have not seen it in flower, yet, judging from its broad, 

 deeply-cut leaves, or rather stems, it will prove a valuable acquisition to that interesting 

 tribe of plants/'' — Journal of Horticultural Society, vol. i., p. 184. 



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, Mammil- 

 laria, 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 Achermanni of the 

 Botanical Register ; Cereus latifrons of Pfeiffer; and Cactus Phyllanthus of Linnseus ; to 

 which are to be added two new species of Phyllocactus, viz., stenopetalus of Salm-Dyck, and 

 grandis of Lemaire. 



In -strict justice, the generic name of Phyllocactus, now employed, and first applied by 

 Link in 1833, ought to be surrendered for that of Phyllarthrus, proposed by Necker in 1791; 

 but custom 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. 



