io8 PRESENT-DAY GARDENING 



which should be treated like the species. Z. rostratum 

 requires a warm, moist house. The Promenaeas include 

 P. stapelioides, P. Rollissoni, and P. xanthina. These should 

 be grown in shallow pans, either for suspending or placing 

 on a shelf near the glass of the roof. 



Bollea, Htmtleya, Pescatorea, Batemannia, and War- 

 scewiczella. These are sectional names for a leafy class, 

 with rudimentary pseudo-bulbs. They are frequently mis- 

 managed. The plants should be grown in the potting 

 materials recommended for epiphytal Orchids, and surfaced 

 with Sphagnum-moss. Being evergreen, and with no 

 superabundant vitality, they should be kept moist all 

 the year, but liberally watered when growing. A moist 

 corner of the intermediate house, or warm house, should 

 be selected for them, each plant being raised on an inverted 

 pan or pot. When grown in the warm house, a rest 

 should be given in a cooler house after growth is com- 

 pleted, but the plants must not be dried off. They may be 

 propagated by division. All require shade. Botanically 

 they are placed under Zygopetalum. 



