Plate XI [Illustration: Odontoglossum Lindleyanum.] PLATE XI. ODONTOGLOSSUM LINDLEYANUM. DR. LINDLEY'S ODONTOGLOSSUM. O. (EUODONTOGLOSSUM, _Lindl._) pseudobulbis ovato-oblongis compressis diphyllis, foliis lanceolatis subcoriaceis acutis scapo racemoso multi-(5-12)floro vix brevioribus, sepalis petalisque lineari-lanceolatis acuminatis subæqualibus, labello angusto unguiculato hastato utroque latere angulato in disco bifalcigero basi per carinam cum columnâ connato. Columna tomentosa, auriculis erectis angustis acuminatis. ODONTOGLOSSUM LINDLEYANUM, _Reichenbach fil._: _Warsz. Bonpl._ ii. 69; _Reichenbach_, _Xenia Orch._ _t._ 71; _Walpers_, _Annales._ vi. _fasc._ 6. ODONTOGLOSSUM EPIDENDROIDES, _Lindl. fil._ (_non Hb. Kth. N.G._). Habitat in PAMPLONA (in sylvis humidis), 8500 ft., _Linden_; Ocaña, 9000 ft., _Schlim_; Ocaña (_floribus majoribus_), _Wagener_; Bogotá, _Weir_. DESCRIPTION. PSEUDOBULBS _about 3 inches long, ovate-oblong, compressed, 2-leaved, sometimes a little spotted_. LEAVES _lanceolate, from a span to a foot long, rather leathery, sharp-pointed_. RACEME _rather longer than the leaves, bearing from half-a-dozen to a dozen flowers_. BRACTS _oblong, acute, about one-third the length of the ovary_. SEPALS _and_ PETALS _nearly equal, an inch or more long, linear-lanceolate, acuminate, of a yellowish-green, with a few large chestnut blotches, the arrangement of which varies in different specimens_. LIP _shorter than the petals, narrow, unguiculate, hastate, 3-lobed; the lateral lobes forming two blunt angles, the middle lobe longer, linear-lanceolate, deflexed, with two large upright slightly-curved horns placed on either side of the disk; at its base the lip is keeled and united with the column after the fashion of the Trichopilias; its colour is usually a pale yellow or yellowish-white with large chestnut bands_. COLUMN _downy, furnished near the summit with two narrow erect upright acuminate auricles_. The name of this plant, associated as it is with the memory of the distinguished botanist who has lately passed from among us, is to me suggestive of the most melancholy reflections. Mourn indeed I must, the loss of one who had been my steady friend for five-and-thirty years, and by whose labours among the members of my favourite tribe, I have been enabled to follow a pursuit that has never ceased to be a joy and solace amid all the cares and vicissitudes of life![7] _O. Lindleyanum_ was so named by Professor Reichenbach, in honour of the great Orchidist whose mantle seems now to have fallen upon himself. It is closely allied to the _O. epidendroides_ of Humboldt and Kunth, from which indeed Dr. Lindley failed to distinguish it, but if the characters of the two species, as represented in the 'Xenia,' prove to be constant, no doubt the German Professor was right in separating them.