PREFACE xi 



Bofanj. Dr R. S. Rogers of Adelaide, S. Australia, for valuable observations on the 

 pollination of orchids. Herr Josef Ruppert of Heidelberg Rohrbach, who sent us 

 specimens, and was the finder of the remarkable spike figured in PI. 2, fig. 3. Rev. T. 

 Stephenson and his son Dr T. A. Stephenson, who showed us rare orchids in their 

 habitats, and sent us specimens from time to time. Mr W. H. St Quintin of Scampston 

 Hall, Yorks., who successfully cultivated many rare orchids which we sent him, 

 enabling us to study the spikes in successive years, and supplied the photographs on 

 PI. G. Mr C. B. Tahourdin for his notes on British orchids and for help in the field. 

 Herr P. Vermeulen of Amsterdam for information as to marsh orcliids growing in 

 Holland, Prof. E. F. Weiss, F.R.S., P.L.S., for valuable botanical aid. Mr Gurney 

 Wilson, F.L.S., who helped us in many ways, and gave permission to reproduce 

 several photographs from the Orchid Kevieiv (Pis. H and I). 



M. J. GODFERY 



