n] "GRAMEN BULBOSUM AQUATICUM ' n 



which is here reproduced (Fig. 3). A century later, Loeselius 1 

 recognised these strap-shaped leaves as belonging to the Arrow- 

 head; under the name of "Sagittaria aquatica foliis variis," 



FIG. 3. Sagittaria sagittifolia, L. An illustration given by Gaspard Bauhin in the 

 Prodromes Theatri Botanici, 1620, under the name of " Gramen bulbosum aquati- 

 cum/' but which in reality represents a germinated tuber of the Arrowhead, bearing 



ribbon-leaves. 



he figured a plant bearing both ribbon-leaves and leaves of 

 sagittate shape. The ribbon-leaved, deep-water form has been 

 distinguished as f. vallisneriifolia. An opportunity of examining 



1 Loeselius, J. (1703). 



