THE ORCHID GENERA 89 



twenty-four, which includes M. buccinator, a species 

 that has been described as one of the most polychromic 

 Orchids in existence, M. badium, M. Cartomi, M, col- 

 losus, M. Greenii, M. igneum, M. luxatum, and its ivory- 

 white variety eburneum, M. Ocana, M. pardinum, includ- 

 ing its bright lemon-yellow coloured variety unicolor and 

 M. Rolfeana. 



Neobenthamia 



N. gracilis is a remarkable species, and at present the 

 only known species in the genus. Its slender stems 

 grow to about six feet high, clothed with narrow 

 leaves ; the flower is white, the lip being spotted with 

 rose purple on either side of a central yellow stripe. 

 It should be potted and watered like a Sobralia, but 

 requires a much warmer temperature. It is a native of 

 Zanzibar. 



Odontoglossum 



As mentioned in the early part of this work, these 

 cool house plants are deservedly popular with Orchid 

 growers, and many are the striking floral qualities they 

 possess ; not only are the flowers of many of them of 

 exquisite beauty, but the elegant arching or pendu- 

 lous spikes, in which they are generally produced, 

 are extremely useful for cutting and decorative pur- 

 poses generally. The genus as at present circumscribed 

 includes about a hundred species, many of which are 

 exceedingly polymorphous. These Alpine, or rather 

 Andean, Orchids are found on the most elevated moun- 

 tain ranges that face the Pacific, extending from 

 Peru to the southern portions of Mexico, at consider- 

 able altitudes ranging from 5000 to 10,000 feet above 

 sea level. All the species are pseudo-bulbous, the 



