THE ORCHID GENERA 117 



and placed in a sunny position in the warmest house. 

 Its congeneric species, V. teres, should be similarly 

 trained, but it requires a few degrees less warmth. 

 V. Miss Joaquim is a handsome hybrid between V. Hook- 

 eriana and V. teres ; its habit intermediate ; blooms as 

 large as V. teres \ very floriferous, bearing as many 

 as seventeen flowers on a single spike. These terete 

 varieties should be well syringed overhead during the 

 growing season, and occasionally on sunny days in winter, 

 to keep them plump. 



Zygopetalum 



Zygopetalums, the last of the Orchid genera to be 

 treated here, are epiphytal, and contain many handsome 

 large-flowered species. The number of species known 

 to science is upwards of fifty. These are distributed 

 chiefly through the central parts of America. Under 

 Zygopetalum are included such species as Bollea, Hunt- 

 leya, Pescatorea, Batemannia y Warscewiczella, and Kefer- 

 steinia. These are all shade-loving species, and the 

 atmosphere around them should be always kept moist. 

 The plants should be placed in well-drained pans, 

 using a compost of three parts of sphagnum moss to 

 one of peat ; and, when affording fresh compost, it 

 is advisable to elevate the plants well above the rim of 

 the pan. An average temperature of about 6o° suits 

 them. Zygopetalum or Zygosepalum rostratum should be 

 grown in a moist, shady corner of the East Indian 

 house ; leaf-mould suits it admirably. The true Zygo- 

 petalums, as Z. Burkei, Z. brachypetalum, Z. graminifolium, 

 and Z. Mackayi, are of more robust habit, and should 

 be potted in loam and peat in equal parts, with a little 

 moss and sand added. The Cattleya, or intermediate 

 house, is the best place for them, Z. maxil/are, owing 



