276 Plants and their Ways in South Africa 



CC. Lip with a short sac or spur. Perianth 



lobes nearly equal .... EULOPHIA. 



CCC. Lip with a long spur ; epiphytic. 



Pollen masses joined to one gland . . ANGR^CUM. 

 Pollen masses with two glands . . MYSTACIDIUM. 

 AA. Anthers without a lid. Pollen masses 



granular, attached to a stalk. 

 B. Sepals and petals free from each other. 

 C. Sepals green, lip i-spurred. 



Flowers solitary, lip deeply fringed . . BARTHOLINA. 

 Flowers spiked, lip not fringed . . HOLOTHRIX. 

 CC. Sepals petaloid. 



Lip at the back, 2-spurred or saccate . SATYRIUM. 

 Lip in front, never spurred or saccate ; 



stem straight. ..... DISA. 



Lip in front in three distinct sections, base, 



middle, and apex; stem bent at the nodes SCHIZODIUM. 

 BB. Odd sepal and petals cohering together. 

 C. Side sepals free. 



Side sepals spurred or saccate . . DISPERIS. 

 Side sepals not spurred or saccate. 

 Odd petal with a long spur . . . HABENARIA. 

 Odd petal not spurred. 



Hood erect PTERYGODIUM. 



Hood nearly flat and horizontal . . CERTANDRA. 

 CC. Side sepals joined to form a lower lip . CORYCIUM. 



Hulophia. Sepals and petals nearly equal. Sometimes 

 differently coloured. Lip saccate or with a short spur, smooth 

 or crested or bearded on longitudinal furrows. Pollinia at- 

 tached to one gland. Flowers small, yellow or dull coloured, 

 shaded with purple, green, orange, or white. The base of the 

 leaves often forms a bulb-like swelling above ground. Leaves 

 in two ranks, usually plaited. Terrestrial. 



Extending from Cape Town to Natal, but more common in the East. 



Angraecium and Mystacidium are genera with much 

 the same habit and appearance. They are epiphytes, often 

 festooning the trees with beautiful showers of white blossoms. 



The flowers are sometimes yellowish, and very small. Eastern dis- 

 tricts and Natal. 



Bartholina is one of the prettiest and daintiest of Orchids. 

 It may be known at once by the peculiar lip, with its many 

 long, slender projections. 



