forma pymeea, Schultz.' Whether this name was intended to designate 



a reduced form of 0. aquaticum as distinguished from 0. pygmceum is 

 uncertain. — W. Botting Hemsley. 



Fig. 1, an entire plant in flower of O. aquaticum (Porta and Rigo, 311) ; 2, ditto 

 of 0. pygm&um in fruit with the bracts closely folded over the ripe achenes (Palestine, 

 Dammann & Co.); 3, the same after being immersed in water a few minutes; 4, a leaf 

 (Baluchi>tan, Stocks, 704) ; 5, a ray-flower ; 6, ditto seen from below ; 7, a disk-flower 

 and pale; 8. anthers; 9, fctigma (Porta A: Rigo, 311); 10, a bract from the inner 

 series of the involucre ; 11, an achene ; 12, a portion of the pappus (Dammann & Co.). 

 Pig. 1-4 natural ft>#; the rest enlarged. 



