LIST OP COOL ORCHIDS. . 129 



bulbs are slender, spindle-shaped, from two to three inches 

 long, bearing a narrow lanceolate leaf about the same length. 

 Its flowers differ from those of its congeners in being of a 

 rosy lilac or dee"p violet colour, not scarlet, as in all the 



preceding. 



Tricocentrum. 



This geniis consists for the most part of small flowered in- 

 conspicuous plants. 



*T. albo purpureum. This is, however, well worth growing, 

 and produces its flowers freely. It has no pseudo-bulbs, but dark 

 green fleshy leaves, lanceolate in form, and from four to six 

 inches long. Flowers on drooping scapes; sepals cinnamon 

 brown ; lip white with a pair of purple lilac blotches near its 

 base. It comes from New Granada, and grows well, blooming 

 freely under cool treatment. 



*T. tigrinum. Somewhat resembles the preceding in habit, 

 but has much larger and finer flowers. Individual blooms 

 from two to four inches across ; sepals and petals greenish- 

 yellow, barred with brown ; lip white at the apex, the basal 

 portion being bright orange-yellow. This is a beautiful and 



very rare species. 



Trichopilia. 



This is a beautiful genus of easily grown and profuse 

 blooming plants. They grow freely in the warm end of the 

 cool house under what is known as Mexican treatment, that 

 is, cool but drier than the Peruvian house, which is kept very 

 cool and moist. They should be planted in good fibrous peat 

 well elevated above the rim of the pans or pots, then if the 

 latter are well drained there can be little fear of their ever 

 receiving too much water. There are many species in culti- 

 vation, but we shall only notice the best and most useful. 



*T. coccinea (Central America). Bulbs from two to four 

 inches long, one-leaved. Flowers from two to four inches 

 across ; sepals and petals ligulate, creamy- white, mottled with 



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