432 ORCHIDS: 
and coloured pale, clear yellow; the lip is three-lobed, the 
_ front lobe being the largest and coloured yellow, whilst 
the side lobes are erect, and spotted and barred with 
Fig. 105, Promenea Rollissoni 
(nat. size). 
purple. When properly cultivated, this species forms a 
compact tuft of healthy leaves, and produces annually a 
very prolific crop of its pretty flowers, which remain fresh 
