EXPLANATION OF PLATE 2G 



Ornithidium 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. 



Ornithidium proliferum 



5. Portion of plant, nat. size. 



C>. Flower X about 2. 



7. Lip flattened x about 2, 



