346 ORCHIDS. 
branched, and many-flowered. The flowers are gin. to 
4in. across; the sepals and petals are pale yellow, with 
large, chocolate-brown patches and spots, and are remark- 
able for their long points; the lip is pure white, with a 
Fig. 81. Flower of Odontoglossum Hallii 
(nat. size). 
beautifully-fringed margin, and is spotted and blotched 
with red, and stained towards the base with deep 
yellow. This species requires cool treatment, flowering 
in March and April. There is considerable variation in 
the depth of colour and spotting of the flowers, but 
