THE KINSHIP OF PLANTS TO ANIMALS 



751 



developed ])roboscis long enough to reach 

 to the bottom of the spur, and in visiting 

 the flower in search of nectar the insect 

 assists in cross-fertilisation. This is but 

 one of many instances which might be 



of which have developed long, tail-like 

 appendages; in the "Butterfly" orchid 

 {Oncidium papilio), with its brown and 

 yellow spotted flowers ; and in the 

 " Dove " orchid {Peristeria data), the 



PhotOij-rap/i I'V S. L. Bas[iii, L\ttdhiirst 



ARISTOLOCHIA CIGAS STrRTEVANTH. 



quoted of a relationship between flower 

 and insect too perfectly intimate to be 

 dismissed as "chance." 



Singularity and beauty of lorm are 

 united in the " Lady's Slipper " orchid 

 {Cypripedium), the pouch-like flower of 

 which resembles a slipper ; in other 

 forms of C\pripedium the side petals 



central portion of which has the outline 

 of a do\'e. 



'\'hv StiDihopeas 'M'c l)rilliant and fragrant 

 orchids, and they have the peculiarity 

 that the large, waxy flowers are jmsheil 

 between the roots, and aj^pear below the 

 l)asket in which the plant is growing. 

 The Coryanthcs produce their flowers in 



