ORCHIDACE^ 



Labellum angled or toothed at the base 

 or near the middle 



Leaves linear to linear-oblong 



Leaves oblong-lanceolate 



Petals cuneate, truncate, not 

 toothed on the anterior ba- 

 sal angle 

 Petals oblong, not toothed on 

 the anterior basal angle 



Petals subquadrate, the ante- 

 rior basal angle protuber- 

 ant or toothed 



63. 

 64. 



H. replicata 

 H. triptera 



Q5. H. petalodes 



67. 



Petals ligulate, anterior basal 



angle protuberant 

 Petals spathulate 

 Petals rotundate-square 

 Petals lanceolate 



68. 

 69. 



70. 



71. 



72. 



73. 

 74. 

 75. 



H. Selerorum 

 H. brevilabiata 



H. odontopetala 

 H. Purdiei 



H. Oerstedii 



H. virens 



H. strictissima 



H. alata 

 H. socialis 

 H. Dussii 



[ 20 ] 



