This species is best grown in a pot, with rough fibrous peat as a compost, and good drainage. It should have the same treatment accorded to it as that given to _Odontoglossum Alexandræ_ as regards water, and the temperature of the Odontoglossum house. Dr. Boddaert grew his specimen with the rest of his Odontoglots, and found it to succeed well under this _régime_, the plant continuing to increase in size and in value. The following New Orchids were exhibited at the meeting of the Royal Horticultural Society at South Kensington on February 12th, and were severally awarded First Class Certificates:— Cattleya Percivaliana alba.—A most chaste and beautiful variety of this novelty, having pure white sepals and petals, and a white lip marked with a blotch of yellow in the throat. Exhibited by R. P. Percival, Esq., Birkdale, Southport. Lælia anceps Williamsiana.—A new variety of _Lælia anceps_, exhibited by Messrs. F. Sander & Co., of St. Albans. The sepals and petals are pure white, of good form, and stout substance; the lip white, having a yellow patch at the base, and a yellow throat striped with deep crimson-purple. Odontoglossum Alexandræ (crispum) aureum.—A very striking novelty, with clear yellow flowers. The sepals and petals are of a deep lemon yellow, the sepals spotted with brown, and the lip having one or two spots of a similar colour. Exhibited by F. A. Philbrick, Esq., Bickley. Odontoglossum Pollettianum.—This plant was much admired on account of the distinct markings of the flowers. The sepals and petals were white, tinged with purple, and heavily spotted with reddish brown; the lip being wedge shaped, as in _O. Andersonianum_. It is, doubtless, one of the many natural hybrids between _O. Alexandræ_ and _O. gloriosum_. Exhibited by H. M. Pollett, Esq., Bickley. Oncidium anthrocene.—In growth this plant somewhat resembles _Miltonia Warscewiczii_ (_O. Weltoni_), but it is quite distinct in the character of its flowers, and in its branched inflorescence. The sepals and petals are much undulated, brown, faintly barred with yellow towards the base; the lip is yellow, spotted with brown, and very distinct. Exhibited by Messrs. F. Sander & Co., St. Albans. Oncidium Jonesianum.—A new and distinct species, having terete foliage eight to twelve inches long. The flowers are about two inches across, greenish yellow, with reddish brown spots, the lip white spotted with red. Exhibited by A. H. Smee, Esq., Wallington. The following were also submitted to the meeting:— Vanda Cathcartii.—There was a well-grown specimen of this fine species exhibited by Mr. Aldous, gardener to G. Heriot, Esq., Highgate, bearing three spikes consisting of eleven flowers. It is a pity we so seldom see this plant, as it is a real beauty. The plant was deservedly awarded a Cultural Commendation. Mr. Philbrick exhibited flowers of a fine series of _Cattleya Trianæ_, among which some very nice varieties both of the light and dark coloured sections.