

BIGNO^IACEJS. (BIGNONIA FAMILY.) 277 



*-< *-+ Corolla violet -purple. 



8 U. piirplirCcl, Walt. (PURPLE BLADDERWORT.) Leaves wliorled 

 along the long ininiersed free floating stems, petioled, decompound, capillary, 

 bearing many bladders; flowers 2-4 (' wide) ; spur appressed to the lower 

 3-lobed 2 -saccate lip of tli3 corolla and about half its length. Ponds, Maine to 

 Virginia, and southward. Aug., Sept. Scape 3' -6' high, not scaly below. 

 * * Scape solitary, sle/ider and naked, or with a few small scales, the base rooting in 

 the mud or soil: leaves small, awl-shaped or grass-like, often raised out of the icater, 

 commonly few or fugacious : air-bladders few on the leaves or rootlets, or none. 

 - Flower purple, solitary : leaves bearing a few delicate lobes. 



9. U. resupisft&ta, Greene. Scape (2' -8' high) 2-bractcd above ; leaves 

 thread-like, on delicate creeping branches ; corolla (4" - 5" long) deeply 2-parted ; 

 spur oblong-conical, very obtuse, shorter than the dilated lower lip and remote 

 from it, both ascending, the flower resting transversely on the summit of the scape. 

 Sandy margins of ponds, Maine (Mr. Chute), E. Massachusetts, and Rhode 

 Island. Aug. 



i- *- Flowers 2-10, yellow : leaves entire, rardy seen. 



10. U. Slllml&ta, L. (TINT BLADDERWORT.) Stem capillary (3'- 

 5' high) ; pedicels capillary ; lower lip of the corolla flat or with its margins re- 

 curved, equally 3-lobcd, much larger than the ovate upper one ; spur oblong, acute, 

 straight, appressed to the lower lip, which it nearly equals *in length. Sandy 

 swamps, pine-barrens of New Jersey, Virginia, and southward. June. Co- 

 rolla 3" -4" broad. 



11. U. coriiuta, Michx. (HORNED BLADDERWORT.) Stem strict 

 ( - 1 high), 2 - 10-flowered ; pedicels not longer than the calyx ; lower lip of the 

 corolla large and helmet-shaped, its centre very convex and projecting, while the 

 sides are strongly reflexed ; upper lip obovate and much smaller ; spur awl-shaped, 

 turned dijicn mtrd and outward, about as long as the lower lip. Peat -bogs, or 

 sr.udy swamps ; common. June - Aug. Flowers close together, large. 



2. PINGUiCUL-A, L. BUTTERWORT. 



Upper lip of the calyx 3-cleft, the lower 2-cleft. Corolla with an open hairy 

 or spotted palate. Small and stcmless perennials, growing on damp rocks, 

 with 1 -flowered scapes, and broad and entire leaves, all clustered at the root, 

 soft-fleshy, mostly greasy to the touch (whence the name, from pinguis, fat). 



1. P. Ylilg'uriS, L. Leaves ovate or elliptical ; scape and oalyx a little 

 pubescent; lips of the violet corolla very unequal, the tube funnel-form; spur 

 straightish. Wet rocks, W. New York to Lake Superior, and northward. 

 July. (Eu.) 





ORDER 72, BIGNONIACE^E. (BIGNONIA FAMILY.) 



Wood 1 1 or rarely herbaceous plant.*, monopetcdous^ didijnamous or dian- 

 tclfh tlie oranj commonly 2-celled by the 'meeting of the two placentae off 

 of a projection from than, many-needed : the large seeds with a flat embryo 

 ml no albumen. Calyx 2-lipped ; 5-cleft, or entire. Corolla tubular or 



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