_O. phalænopsis_ is entirely distinct from any species of the genus yet in cultivation, but it is allied to a still finer plant detected by Warszewicz in Costa Rica, and called in honour of its discoverer _O. Warszewiczii_ by Professor Reichenbach.
DISSECTIONS.--1. Lip. seen sideways; and 2. Front view of lip: _both magnified_.
O. (EUODONTOGLOSSUM, _Lindl_.) pseudobulbis ovatis compressis diphyllis, foliis coriaceis oblongo-ensiformibus subundulatis apice recurvis racemo 5-10-floro erecto rigido brevioribus, sepalis petalisque oblongis subæqualibus undulatis infimis connatis, labello angusto obovato retuso basi auriculato, disci cristâ apice bilobâ dilatatâ utrinque in medio dente refracto auctâ, columnæ alis incurvis cirrhatis. (_Lindl. Fol. Orch._)
ONCIDIUM INSLEAYI, _Barker in Bot. Reg._ 1840, _Misc._ 21; _Bateman, Orchid. Mex. et Guat. t. 21_; _Van Houtte, Flore des Serres,_ 1848, _t._ 62.
Habitat in MEXICO, _Barker_; OAXACA, _Loddiges_; 5-6000 _ft._
PSEUDOBULBS _ovate, slightly furrowed, compressed, bearing 2 leathery, sword-shaped, sharp-pointed_ LEAVES, _which are less than a foot long, and like the rest of the plant of a glaucous hue_. SCAPE _upright, longer than the leaves, bearing from 5 to 10 flowers, usually from 2 to 3 inches in diameter, but sometimes considerably more_. BRACTS _few, about an inch long, occurring at intervals somewhat longer than themselves, and fitting tightly to the stem_. SEPALS _and_ PETALS _nearly equal, oblong, waved, the two lateral ones attached at their base, of a pale yellowish-green tint, crossed throughout their entire length by broad bands of reddish-brown_. LIP _narrow, obovate, turned a little back, of a bright yellow colour, bordered by a belt of red blotches; on its disk are a group of tubercles, mounting two teeth on either side, and with cleft callus in front_. COLUMN-WINGS _bent inwards, and resembling in form the antennæ of an insect_.
This _Odontoglossum_ was originally introduced from Mexico by the late Mr. Barker, of Birmingham, after whose gardener it was named by Dr. Lindley. It flowered with Mr. Barker somewhere about the year 1840, when a figure was prepared for the 'Orchidaceæ of Mexico and Guatemala,' but I had not then the opportunity of examining the plant, nor indeed did I ever actually see it in flower until the autumn of last year (1863) when I happened to meet with the specimen from which the illustration is derived, growing and blooming vigorously in the collection of Dr. Cauty, of Liverpool. The species had, in fact, virtually disappeared from collections during an interregnum of twenty years, and its reappearance is entirely due to the adoption of the rational system of cool treatment now happily prevailing, and under which it may be cultivated with the greatest ease.