CLASS II. ORDER I. 9 



and sometimes furnished with lateral teeth. — Ditches and stag- 

 nant waters. — June, July. — Perennial. 



Utricularia cornuta. Mi. Horned Utricularia. 



Scape rootincr, erect, slender, rigid ; flowers two or 

 three, siibsessile ; lower lip of the corolla very wide, 

 three lobed ; spur porrected, very acute. 



A terrestrial species, never floating. Scape erect, straight, 

 filiform, round, smooth, leafless; furnished with ovate, acute, 

 appressed scales. Flowers two or three, at the top on very 

 short peduncles, yellow, issuing from between three acute 

 bractes of which one is larger and ovate, the two others linear. 

 Calyx of two leaves which are ovate, acute, and yellowish. 

 Upper lip of the corolla reflexed, roundish, yellow ; lower lip 

 much larger, inflated, emarginate, with a small projecting ter- 

 minal lobe. Spur as long as the upper lip, rigid, acute, slightly 

 curved. 



Wet grounds, Sandwich, Chelmsford, &c. Sometimes so 

 abundant as to give the ground a yellow appearance at a dis- 

 tance. 



Utricularia inflata. Walt. \V7iorIed bladder wort. 



Floating, leaves whorled, inflated; pinnatifid at 

 the extremity. 

 Syn. Utricularia ceratophtlla. Mr. 



Stem slender, with vesicular roots or fibres. At the surface 

 of the water is a single whorl of about six oblong inflated leaves, 

 branched at the extremity. Flowers three or four on a stem 

 pedunculated, with sheathing bractes, yellow. Upper lip round- 

 ish, mostly entire. Lower lip three lobed, its inflated portion 

 small. Spur short, compressed, obtuse, appressed to the corolla, 

 three striate, emarginate. — Ponds, Charlestown. — August. 



Utricularia purpurka. Walt. Purple bladder wort. 



Floating; scapes mostly one flowered ; spur flatten- 

 ed, appressed to the lower lip and half its length. 



Bractes sheathing. Calyx obtuse, gibbous. Flowers purple, 

 yellow inside. Upper lip entire, lower lip much inflated, three 



