AND THEIR MANAGEiMENT. 363 



Odontoglossum. 

 O. gloriosum {Li 11 J. and Riiib. /.). — Somewhat resembling 

 O. crispum. Scape ift. to 2ft. high, -often branched; flowers 

 variable, hawthorn scented ; segments rather narrow ; sepals 

 and petals yellow, spotted with chestnut-brown; lip large, yellow, 

 with a large blotch of brown in front of the toothed crest. 

 Colombia. (Batem. Monog., t. 12.) 



O. grande {LiiidL). — One of the best-known species in 

 cultivation. Pseudo-bulbs 2in. to 4in. high. Leaves Sin. to loin. 

 long, dull green, and of thick texture. Scapes about i2in. high, 

 four to seven-flowered, produced when the pseudo-bulb is partly 

 formed ; flowers large, 5in. to yin. across, showy ; sepals bright 

 yellow, barred with deep brown ; petals, the basal halves often 

 entirely deep brown, the apical portions bright yellow ; lip short, 

 white or creamy-yellow, spotted with brown, most prominently 

 near the base. Autumn. Guatemala, 1839. This species, 

 together with O. Inshayi, O. Schlieperiatiuin and O. g. IVilliaiiisi- 

 aniii?t, require slightly warmer conditions than the other 

 members of the genus ; they should also be kept drier after 

 growth is complete. (B. M., t. 3955.) 



Var. Williamsianui?! (Rchb. f.) has shorter, broader, and more 

 obtuse petals ; column with uncinate wings. 



O. Hallii {Lindl.). — Pseudo-bulbs long, thin, narrow, with acute 

 edges, and furrowed. Each pseudo-bulb produces two leaves, 

 which are about ift. long. Scape is from 3ft. to 5ft. long, 

 arching, branched, and many-flowered. The flowers are 3in. to 

 4in. across ; the sepals and petals are pale yellow, with large 

 chocolate-brown patches and spots, and are remarkable for 

 their long points ; the lip is pure white, with a beautifully- 

 fringed margin, and is spotted and blotched with red, and 

 stained towards the base with deep yellow. This species re- 

 quires cool treatment, flowering in March and April. There is 

 considerable variation in the depth of colour and spotting of the 

 flowers, but there is not one variety that may not be ranked 

 with first-rate Orchids. Peru and Ecuador, 1864. (B. M., t. 6237.) 



O. Harryanum {Rchb. f.). — A very handsome and most distinct 

 Odontoglossum. Its pseudo-bulbs are oval-oblong, compressed, 

 furrowed when mature, 3in. long, two-leaved. The leaves are 

 leathery, and a little less than ift. in length. Flower-spikes erect, 

 longer than the leaves, few-flowered; flowers very variable in size, 

 structure, and colour ; sepals oblong, with short, pointed tips, 

 wavy, chocolate-brown, with broad, vein-like streaks of yellow; 

 petals white at the base, with broad, irregular lines of purple ; 

 lip large, roughly triangular, white, with numerous streaks of 

 purple, the apical portion being wholly white; crest yellow. 



