408 ORCHIDS. 



color, intensity of lip and size, and profusion of flower. 

 The most distinct are Vanda tricolor Dodgsoni, superba, 

 multiflora, and Russelliana. 



Our largest plant is never out of bloom, and has this 

 last year had forty flowers at a time. 



Vanda violacea. SYN. of Saccolabium violaceum. 



These plants require to be treated like Aerides. Their 

 season of rest is ordinarily in the winter, when they should 

 be kept cooler and have less water than during the grow- 

 ing season. They thrive well in large, deep wooden bas- 

 kets, in moss and potsherds. We grow the small plants 

 in hanging baskets, the larger in Orchid pots. Being 

 natives of hot countries, they need the hottest house, but 

 we find they do not require as high a temperature as 

 most growers give them, and in our warmest house the 

 thermometer frequently falls to fifty at night, the plants 

 seeming to thrive better for this same cool treatment. 



Vanilla. Plumier. Epiphyte. 



Name from the Spanish. 



Lodd. Cab., 733. 



The species, Vanilla aromatica and planifolia, are grown 

 not so much for the flowers, which are insignificant, as to 

 obtain the fruit by artificial impregnation, which is easily 

 performed. The plants are best grown in pots in peat 

 and leaf mould, and should be trained to wires and al- 

 lowed to droop from the rafters. They should have heat 

 and moisture during the growing season. 



Vanilla hitescens. La Guayra . . . Fl. des Ser., 2218. 

 A newly introduced and very rare plant ; petals and 



