ANGIOSPER1VLE, MONOCOTYLEDONES. 



737 



repetition is not needful here. The Monandrae may be divided into four tribes, the 

 Ophrydece, Neottiece, Vandece, and Epidendrece. 



The Ophrydece include most of the British and European Orchids, which are not 



Fig. 418. Angrcecum eburneutn epiphytic on a tree-trunk (Madagascar). 



epiphytes but terrestrial, with swollen tuberous roots, including Orchis, Ophrys, 

 Gymnadenia, Habenaria, and the South African Disa. 



The Neottiece also include some European forms, Cephalanthera, Listera ovata 

 (the Twayblade), &c., and a series of colourless forms of saprophytic habit, which 

 are destitute of foliage, including Epipogium aphyllum (fig. 257 10 > p. 226), Neottia, 



VOL. IL 



97 



