Plate II [Illustration: Odontoglossum Uro-Skinneri.] PLATE II. ODONTOGLOSSUM URO-SKINNERI, _Lindl_. MR. SKINNER'S ODONTOGLOSSUM. O. (LEUCOGLOSSUM, _Lindl_.) pseudobulbis ovato-oblongis ancipitibus compressis guttulatis 1-2-phyllis, foliis oblongis acuminatis scapo multifloro simplici vel subpaniculato multo brevioribus, bracteis membranaceis cymbiformibus acuminatis ovario 3-plo brevioribus, petalis sepalisque subæqualibus late-ovatis acuminatis, labelli ungue bilamellato limbo cordato maculato acuminato undulato, columnæ alis ovatis deflexis. ODONTOGLOSSUM URO-SKINNERI, _Gardeners' Chronicle_, vol. 1859, pp. 708, 724. Habitat in GUATEMALA, prope Santa Catarina de los Altos, 5-6000 _ft_., _Skinner_. DESCRIPTION. PSEUDOBULBS 3 _or_ 4 _inches long by nearly as many wide, much flattened, and very sharp at the edges, always powdered with minute brown dots, which do not appear until the second year_. LEAVES _oblong, broad, and stiff, acuminate at their extremities, much shorter than the scape_. SCAPE _generally simple, but sometimes slightly panicled, about a yard high, and bearing from_ 10 _to_ 20 _agreeably scented_ FLOWERS. _Bracts_ _of a delicate texture, boat-shaped, scarcely more than one-third the length of the ovary_. SEPALS _and_ PETALS _nearly equal, broadly ovate, about an inch long, of a green colour, covered with rich reddish-brown spots_. LIP _broad and spreading, heart-shaped, acuminate, and turned inwards at the apex, its disk white, but covered with round blue spots, which cease at the foot of the isthmus (claw), where two upright and nearly parallel lamellæ (plates) are stationed_. COLUMN _furnished with ovate, decurved, round-headed wings_. This is a robust and stately plant, nearly allied to _O. Bictoniense_ to which at one time Dr. Lindley was disposed to refer it, but far larger and handsomer in all its parts. Its broad pseudobulbs which become covered in their second year with a multitude of small reddish dots, its wide sepals and petals, the spotting of its lip, and its general resemblance to _Zygopetalum Mackaii_ will, however, sufficiently distinguish it. Being found at a higher elevation than _O. Bictoniense_, it requires to be kept more cool, and as it affects dark and wet banks in its native wilds, it is better to place it in a north house where it can be more readily protected from the sun. Treated in this way it grows luxuriantly and flowers abundantly at Knypersley, whence the specimen figured in the Plate was derived. Its flowering season seems to vary, for while with me it is now (May) coming into bloom, about London November is the more usual month.