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). 



