LIST OF COOL OKCHIDS. 109 



bars at the base only ; lip cordate, yellow, not white, as in 

 0. cordatum, spotted wtth brown. It is very different from 

 O. cordatum when seen in flower, but it has been confounded 

 with and even figured as that species April to June, lasting a 

 month or six weeks. 



0. membisanaceum. See 0. Cervantesi. 



0. ncBvium. A splendid species, native of the New Grana- 

 dian Andes. Pseudo-bulbs rather flat, ovoid, wrinkled trans- 

 versely when old ; flowers from ten to sixteen on an arching 

 spike, from twelve to eighteen inches long ; sepals and petals 

 an inch and a half long, lanceolate, with wavy margins, of a 

 pure white colour, spotted and speckled with purplish crimson. 

 Flowers in May and June, lasting from four to six weeks. 

 This is one of the finest of all the Odontoglots, and makes a 

 fine exhibition plant when well grown. 



0. noBvium majus. Another and a better form of this species, 

 bearing larger flowers, which are produced in profusion on 

 well-grown plants about April or May. A splendid specimen 

 of it in the collection of F. B. Dodgeson, Esq., of Blackburn, 

 has produced twenty-five flower-spikes, some of them 

 bearing from fifteen to sixteen flowers. There is also a noble 

 example of this plant in the select collection of John Russell, 

 Esq., of Mayfield, near Falkirk, N.B. Both these plants flower 

 very freely, and are in the most luxuriant health. 



O.nebulosum (Mexico). This is a fine large-flowered species, 

 that succeeds perfectly under the coolest of indoor treatment. 

 In its native habitat it is found at from 8,000 to 10,000 feet 

 elevation. Pseudo-bulbs roundish, two-leaved ; spikes stout, 

 from five to seven-flowered. Flowers from two to four inches 

 across ; sepals and petals from one and a half to two inches 

 long, one to one and a quarter inch broad, oblong, slightly 

 incurved, white more or less spotted with brown ; lip cordate, 

 with a lemon-yellow bilobed crest, and a few brown spots. 



