Epiphytal. _Pseudobulbs_ ovate obtuse, nearly two inches long, pea-green, compressed, diphyllous. _Leaves_ oblong-ligulate, acute, channelled towards the base. _Scape_ radical, produced in the axil of a leaf investing the base of the pseudobulb, and terminating in an erect many-flowered raceme, furnished with small ovate bracts at the base of the pedicels, and having a few more elongated bracts below. _Flowers_ stellate, about three and a half inches across, handsomely spotted; _sepals_ slightly wavy, lanceolate, attenuately acuminate, narrowed to the base, clear bright yellow, deeper at the tips, dotted all over with rather small brownish crimson spots, which are here and there somewhat larger, those towards the apical part being less crowded by the smaller spots, the dorsal sepal with three red lines at the base; _petals_ similar in form and colour, the larger less crowded spots being more evident, and the base marked by three lines of red; _lip_ ovate-lanceolate, about two-thirds the length of the sepals, attenuated at the apex, bright yellow, deeper at the base, where there are a few red streaks, and with a large brownish crimson blotch towards the front, and a few marginal spots, the disk appressed to the column at the base, and bearing a thick linear keel, which extends into two rhomboidal toothletted lamellæ. _Column_ sulphur-yellow, with a few reddish-brown spots, and a pair of falcate subulate ears or wings at the apex. Odontoglossum Leeanum, _Reichenbach fil._, in _Gardeners’ Chronicle_, N.S., xvii. 525; xix. 694. This is one of the most distinct Odontoglots that has come under our notice; and its prettily-spotted flowers are so attractive that every grower will be anxious to procure it. We believe, however, that the plant from which our drawing was made, is the only one known at the present time. It is in the possession of W. Lee, Esq., Downside, Leatherhead, in whose honour it has been named, and who is very fortunate in being the possessor of such a gem. There is little doubt of its being a natural hybrid. The plant was imported along with many others, none of which, however, have produced flowers approaching it in beauty. _Odontoglossum Leeanum_ is of evergreen habit, with pseudobulbs about two inches high, of a pea-green colour. The leaves also are of a lively light green colour, and about ten inches in length. The sepals and petals are of a pale yellow margined with orange, and spotted with rich red-brown, the lip yellow, also spotted with the same colour. It blooms during the winter months, and lasts for several weeks in beauty, forming a most effective contrast to the white flowers of _O. Alexandræ_ and _O. Pescatorei_. The plant requires the same treatment as the two species just named, and blooms in the same way.