ODONTOGLOSSUM. 431 



upcurved horns on the disk. This plant blooms during the 

 winter months. — Neic Grenada. 



Fig.— Orchid Album, ii. t. 90 ; Xenia OrcJi., t. 192, figs. 1—4 ; Card. 

 Chron., 1872, 1068, tig. 251. 



0. COrdatum, Lindley. — An old though very distinct and 

 handsome species of free-growing and free-blooming habit, 

 and one therefore which deserves to be grown for its 

 utility. It has oblong obtuse compressed pseudobulbs, 

 broadly oblong acute leaves, and distichous racemes of 

 prettily spotted flowers on scapes which issue from the axils 

 of accessory leaves, and grow about a foot in height. The 

 flowers are stellately expanded, with lanceolate caudate acumi- 

 nate sepals and shorter broader petals, both yellow, the surface 

 of the sepals almost ~ wholly covered by numerous trans- 

 verse oblong bars of bright chestnut brown, that of the 

 petals with roundish blotches of the same colour ; the lip is 

 cordate acuminate, white with a line of brown spots down the 

 centre and another round the mai'gin, the apex being wholly 

 brown, the claw bearing a bilobed fleshy appendage or crest. 

 There are many varieties of this species, which requires to be 

 grown in a pot in peat. — Mexico ; Guatemala. 



YiG.— Orchid Album, iv. t. 186 ; Knowles and Wesic, Floral Cab., t. 100 ; 

 Pescatorea, t. 26 ; Bot. Mag., t. 4878 (as maculatum) ; Batem., 2nd Cent, 

 of Orch. PI., t. 167 ; Id., Mon. Odont., t. 25 ; Gartenflora, t. .S56. 



Syn. — 0. Iloolcerianum. 



0. COrdatum salphureum, Rchh. /. — A curious variety, in 

 which the flowers have sulphur-coloured sepals, while the 

 petals and lip are white with sulphur-coloured tips and 

 blotches; it was flowered by Mr. F, Sander in 1880. — Mexico. 



0. COrdatum SUperbum, Hart. — This is a very fine variety 

 of the old and useful 0. cordatum. It produces flower scapes 

 upwards of two feet high and very much branched, and in 

 which the flowers are not only larger, but theii" colours very 

 much richer than in the type. There is a fine plant of 

 this variety in the collection of Baron Schroder, The Dell, 

 Staines. — Mexico. 



0. COronariuin, Lindley. — A charming species, one of the 

 finest in the genus. It has oval compressed shining pseudo- 

 bulbs and dark green oblong coriaceous leaves. The scape, 

 which rises upright from the side of the bulb, is about a foot 

 and a half in height, and bears a many-flowered raceme 

 a foot long, loaded with flowers which are nearly two inches 



