EXPLANATION OF PLATE 26 



OrnitMdium vestitum 



1. Portion of plant, natural size. 



2. Flower, with one sepal and one half and one petal 



removed x 5. 



3. Anther enlarged. 



4. Pollinia enlarged. 



Ornithidmm proliferum 



5. Portion of plant, nat. size. 



6. Flower x about 2. 



7. Lip flattened x about 2, 



