THE ORCHID REVIEW. 269 
paniculata, as also for the much rarer I. teres, for Ondidium iridifolium, 
Rodriguezia (including R. candida), and, in short, for most of those 
which grow naturally on the outer branchlets of trees or shrubs, and 
are consequently much exposed to the sun, and are, at the same time, pro- 
vided with ideally perfect drainage. The conditions in an English stove, of 
course, differ very materially from those of a tropical garden; but it would, 
perhaps, be worth the experiment whether some of the small ‘ difficult 
things’ might not be grown on living hosts.” 
ONCIDIUM KIENASTIANUM. 
OncipDIUM KIENASTIANUM was described by Reichenbach twenty years ago 
(Gard. Chron., 1879, ix., p. 558), from a plant which had been imported by 
‘Roezl, it was supposed, from Northern Peru, and flowered in the collection 
of Consul Kienast, at Zurich. It was described as “ of near affinity to the 
rather well-known Oncidum trilingue of Dr. Lindley,” being, however, 
“very distinct in its much shorter bracts, in the different colour of the 
flowers, the very different keels of the lip, and in the very much less 
developed undulation of the sepals.” It is very interesting to find that the 
original type plant still exists, Consul Kienast having now sent an 
inflorescence to Kew. Unfortunately for the description, this specimen 
proves to be O. trilingue itself, none of the differences pointed out being 
present, and thus we may suppose that the plant was not fully developed 
when the description was made. On the other hand, it is interesting, after 
this lapse of time, to know what the plant really is, and relegate it to its 
Proper position. O. trilingue first flowered in the collection of Sir Phillip 
Egerton, in April, 1850. It had been collected by Warscewicz, no doubt 
at the sources of the Maranon River, Peru, from which locality he sent 
dried specimens. It is a very distinct species of the O. macranthum group, 
with very undulate sepals and petals, but rather dingy in colour. 
Another species is somewhat affected by the above discovery. At the 
Temple Show, in 1892, a plant was exhibited by Messrs. F. Sander & Co., 
under the name of Oncidum Rolfeanum, to which a Botanical Certificate 
was given, This I at first thought might be O. Kienastianum, though I 
remarked that there were characters which, if correctly given, would show 
it to be specifically distinct (Gard. Chron., 1892, xii., p. 34). O. trilingue 
was, of course, well known, and much too distinct to be confused. Several 
other species of this group are only known from Reichenbach’s descriptions, 
and all may not prove distinct when his Herbarium comes to be opened. 
R. A. ROLFE, 
