DIANDKIA. MONOGYNIA, l3 



£0. PINGUICULA. L. (Butter-wort.) 



Calix bilabiate, upper lip trifid, lower bifid. 

 Corolla irregular, calcarate at the base, limb 



cies; described by Mr. E. as producing- a scape 6-8 inches long", 

 bearing 2 to 3 large yellow flowers. The upper lip lai-ge, 

 rounded, and obscurely 3 1obed, the lower lip sn.aller, about 

 the length of the spur, which is said to be subulate (or as some 

 would perhaps say conic) and emarginate. From ail which we 

 may, 1 think, here perceive a plant not very widely distinct 

 from the U- vulgaris of Pursh and others, considered as equally 

 indigenous, like many other aquatics, to the two continents of 

 Europe and North America. 



3. Longirostrisy of Mr. Le Conte. Floating; scapes 1, 2 (or 

 5) flowered, the spur a little longer than the lower lip, (some- 

 what compressed) ascending and emarginate. Flowers yellovv', 

 labia: obscurely 3-lobed, scape 3 to 4 inches long. This species 

 also approaches to the U. vulgaris, but is a much smaller plant, 

 with the flowers rather large. 



4. purpurea. Walter, U. saccafa of Le Conte. 



Scapes 1, 2, or 3 flowered; lower lip of th.e corolla 3-lobed, 

 lateral lobes cucullate on the under side; palate large and pro- 

 minent; nectary compressed, a little acuminated, cloLely appres-' 

 sed to the resupinate corolla and entirely covered by its reflected 

 margins; upper lip nearly round. 



Floating stem 2 or 3 feet long, utriculate leaves digitate, ses- 

 sile, segments pinnatifldand setaceous; scapes axillary, 1 or 2 to- 

 gether. Flower about the size of U. -c^w/§-a?7s, violet-purple; calix 

 persistent. Grows in the ponds upon the Blue-ridge, in the state 

 of New-York, and on the Broad mountain, Pensyivania. In 1809 

 1 collected it in a pond near to Lewistown, Sussex countv, 

 Delaware, from whence it appears to extend as far south as Ca- 

 rolina and Georgia. 



5. Gibba floating. 



6. Bipartita. EUiott. Taking root on the marsrins of ponds. Co- 

 rolla nearly entire; spursliortjscarceh halfaslo'ng as the corolla, 

 very obtuse. Lower division of the calix biHd. 



7. bijora. La Marck. Floating: scape about 2.flowered, corolla 

 entire, spur subulate, obtuse, as long as the lower lip. Le Conte, 



Obs. Fa/*/ describes the neciarv as straight, nearly equalling 

 the upper lip, and with setaceous leaves. South Carolina. 



8. Personata. Le Conte. 



Floweis small, in a long setaceous raceme (1 to 2 feet high, 

 4-10 tlowerea) fui-nishtd with small scaly bractes; upper lip of 

 C 



