P L A T E X I I I . PIG. 1.
ODONTOGLOSSUM AV A R N E R I ANUM,
M R . W A R N E R ' S O D O N T O G L O S S U M.
O. (LEUCOGLOSSUM, Lindl.) pseudobulbis subelongatis compressis monophyllis; foliis membranaeeis
oblongis in petiolum canaliculatum angustatis scapo 2-6-floro brevioribus,
bracteis nneialibus aeuminatis, sepalis lineari-laaceolatis acutis, petalis latioribus undulatis,
labclli callo cimeato ovato, antice abrupte trilobo, lobis lateralibus angulatis, lobo medio
foreipato bicruri, longiori, lateribus ealli a basi versus apieem involutis, lamina eordatotriangula
obtusa, margiue minute erispula crenulata, eolumna graeili clavata aptera.
ODOXTOGLOSSUM WARNEKIAXUM, Iieichcnlach fil. in Mold and SclU. Pot. Zeit. I8G4, 297; idem in Gardeners' Chronicle, 1805,
New Plants, n. 291.
Habitat in Mi*,co (!).
DESCRIPTION.
PSEDDOBULBS rather long and narrow, compressed, about 3 inches in length. LEAVES, one on each pseudobnlb, less than a
span long, membranous, sharp-pointed, narrowed at the base into a channelled petiole. BRACTS about an inch long,
scariose, very acuminate. SCAPE longer than the leaves, only partially covered by the bracts, bearing from 2 to
half-a-dozen flowers of a very delicate texture, and of snowy whiteness with the exception of the yellow crest on the
lip and a few brown blotches on the lower half of the sepals and (though in a less degree) of the petals also.
SEPALS rather narrow, oblong, acute. PETALS broader than the sepals and waved at the margin. LIP with a
heart-shaped crenulate plate ('occasionally suffused with a rosy tint), and a yellow Z-lobed callus at its base, the
front portion of which is longer than the lateral ones (which are turned inwards from the base upwards), and split
into two divergent members. COLUMN slender, clavate, wingless.
This pretty species was first described by Professor Keichenbach, from materials derived from the collection of
Mr. \\ arncr, of Broomficld, ill compliment lo whom lie named it. It also flowered with the late Mr. Cauty, of
Liverpool, who kindly sent me the specimens from which the figure was prepared, but these were smaller and less rich
in their colouring than those of Mr. Warner.
We have no precise information as to the locality where 0. Wamerimum grows wild, but there can be no doubt
that it comes from some part of Mexico, whence we have other species, e.g. 0. Eossii, 0. Ehrenbergii, and 0. nebulosum,
to all of which il is nearly allied. It flowers in the later autumn and winter months, but like most of the other
members of its section (Leucoglossum), is of a delicate habit, and requires to be very carefully handled. It seems to
prefer a moderate heat and perhaps a slightly drier atmosphere than that in which the New Granada and Peruvian
Odontoglossa evidently delight; I lie compost or materials in which Hie roots grow, should on no account be allowed to
become sodden.
DISSECTIONS.—I. I.ip anil column (magnified), seen in front: 2. Ditto, seen sideways.