:\ioRi'iioLoov OF oRcniP rr.owERS. 



19 



ivuuukal.lc ease of this useillatory luuticni is airoraed hy the hihelhuii 

 nf Balhnphyllum barhujerum : the l)la(le of the iip is also inutile in 

 CiiTliupetahmi, Araehiiaiithe, ete. lu Epideudruiu the elaw is laoie 



Bulbupliylluui bai-bii,'criuii. 

 Willi uioUli; labelluui and pudaLc culiuuu. 



Eiiidciidnuii r.seudepideiidruin. 

 Willi claw of labelluui aduate to llie coluuiii. 



or less aihiate to the roluiiin : in ( )dontogiossum it is simply parallel 

 with it, while in Uueidium and uiaiiy other geneva it is at right angles 

 to it.* In Isoehilus, Apostasia and a few othei' genera we find the 



*The relative position of tlie lip aiul .ohiinn ullonls an iii'i>oitaiit chararcrr in ilistingnisliing 

 many of the genera. 



