ANGIOSPERMiE, MONOCOTYLEDONES. 



737 



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

 OphrydecB, Neottieoe, Vandece, and Upidendrece. 



The Opho^dece include most of the British and European Orchids, which are not 



rjg 418 — AngrcEcum ebumeurn epiphytic on a tree trunk (Madagascar) 



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

 Gymnadenia, Habenaria, and the South African Bisa. 



The NeottiecB 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 ^°' p. 226), Neottia 



97 



