Explanation of PI, XVI. 



' HAYATA. 



Fig. 1. The plant. 



2. A flower, seen from above. 



!. The same, seen from below. 



4'. A dorsal sepal and petals, forming a hood. 



4. The same sepal and petals detached. 



5. Two lateral sepals. 



C. Central portion of a flower; an = anther, ap = colmnual ap- 

 pendages; g = gland. 



7. Apical portion of a column, anther taken off; c = clinandriuni ; 



r = rostellnm ; ap=corumnal appendage. 



8. An anther, seen from below ; g = gland. 



