7 b On the North American Utricularia. 



10. U. setacea. Leafless, radicant ; scape setaceous, fur- 

 nished with scales, distantly many-flowered; flowers small 

 yellow ; upper lip of the corolla short, entire, the sides revo- 

 lute at the tip, the lower lip deeply trilobate ; spur subulate, 

 entire, as long as the lower lip ; root small, naked. Inhabits 

 in wet pine lands from New-York to Florida. © Plate VI. 



fig. 11. 



This may be the U. subulata of Gronovius, but cannot be 

 the U. pumila of Walter ; his species must have been a float- 

 ing plant, as he describes it, as he does all that are so, " folns 

 radicifortnibus fibrosis." What Roemer and Schultes mean 

 by saying that the stem is leafless, with a round serrate leaf, I 

 cannot imagine. 



11. U. cornuta of Michaux I have never seen. His de- 

 scription is, nectary subulate, stretched out (porrecttm) ; lower 

 lip of the corolla very broad ; scape rather sessilely 2-flower- 

 ed ; rather rootless, leafless, scape rigid ; corolla large, spur 

 longish, very sharp, horn-shaped. Nutall, who appears to 

 have examined the plant, adds to this, lower lip three-lobed, 

 spur longer than the corolla, nearly vertical, subulate and 

 acute. Inhabits Canada. 



I suspect that most of the specimens which are taken for 

 the U. cornuta, are U. personata ; but the two can never be 

 confounded : the first has a very large and broad, trilobate, 

 lower lip to the corolla, and the other, a small, entire, and 

 narrow one, while the palate is so large and prominent, as to 

 form the most striking* feature in its appearance. 



The following species have been admitted into all the books, 

 but from the imperfect descriptions given of them, cannot be 

 made to agree with any of those described above : 



U. fibrosa. Walter: scape two-flowered ; flowers large, 

 yellow ; spur obtuse ; leaves root-shaped, fibrous. 



I have some suspicion that this is the same with the U. Inte- 

 gra, but he says the flowers are large ; this is, however, s<> 



