NEW PLANTS. 
33 
confirm that genus by showing that, although the appearance of 
oncidium may be assumed, yet the main points of structure 
remain unaffected. One of the most important of these points 
is the partial parallelism of the base of the labellum with the 
column, and the presence of a pair of parallel raised plates at 
that part. This occurs in the original Odontoglossum, and runs 
through all the numerous species published and unpublished 
with which I am acquainted, and it does not occur in any 
Oncidium. 
While, however, notwithstanding its habits, this Odontoglossum 
Citrosmum confirms rather than diminishes the propriety of 
separating Odontoglossum from Oncidium , it has a peculiarity of 
its own which may possibly suggest to some minds the propriety 
of forming it, and such plants as 0 . brevifolium and pulchellum, 
into a separate genus, characterized by the presence of a toothed 
wing or membrane at the back of the anther, and the similarity 
of these plants in habit might seem to justify the measure. In 
that case the generic name Trymenium might be taken for 
them. I do not, however, at present, see the necessity of regard¬ 
ing them as more than a section of Odontoglossum. — Bot. Reg . 
Diadelpiiia Decandria — Papilionacece. 
Hovea Racemulosa. A very pretty greenhouse shrub, which, 
although not so brilliant in colour as H. Celsi or pungens, is by 
no means unattractive. It is a native of the Swan River colony, 
whence seeds were obtained by Capt. James Mangles, r.n. It 
first flowered in the garden of Robert Mangles, Esq., of Sunning 
Hill.— Bot . Reg. 
Van Houtte’s Phlox.-— Garden variety. 
This remarkably beautiful plant was received from 
M. Louis van Houtte, nurseryman of Ghent. It appears to 
be a cross breed between P. suaveolens and P. caroliniana, 
having a white ground with crimson bars or stripes. No account 
of its origin was received with it. Mr. Mountjoy, of Ealing, 
exhibited last year a variety somewhat similar, also very fine. 
Bot. Reg . 
