utricularia LENTIBULARIACE.E 543 



lip entire, a little longer than the 3-toothed lower one, all more or less 

 ciliate: filaments woolly at base: anthers white, ciliate on the sutures: 

 style shorter than the stamens, with irregularly 2-5-lobed stigma. On 

 eandy plains near the sea, Oregon. 



Order LXX LENTIBULARIACEiE Lindl. Veg. Kingd. 686, 



PINGUICULACEjE 



Aquatic herbs, or terrestrial in wet plaecs, with the leaves all 

 radical, or when floating opposite or verticillate, and mostly 

 showy flowers solitary or racemose on scapes or scape -like pe- 

 duncles. Calyx inferior, 2-5-parted. Corolla bilabiate, the 

 upper lip usually erect, concave, or the sides plicate, entire or 

 2-lobed. lower lip larger, spreading or reflexed, 3-lobed, with 

 a palate projecting into the throat and a nectariferous spur 

 beneath. Stamens two : anther-cells confluent into one. Ovary 

 ovoid or globose, one-celled ovules numerous. Style short or 

 none : stigma bilamellate. Fruit a capsule, irregularly bursting 

 or dehiscent by valves. Seeds anatropous, rugose, reticulated, 

 or bristle-bearing. 



1 Utricularia Aquatic or bog plants : foliage often dissected and bladder 



bearing. 



2 Pinguicula Terrestrial herbs : leaves all radical, in a rosulate tuft, entire. 



1 UTRICULARIA L. Sp. 18. 



Herbs floating free in water, or rooting in mud, the aquatic 

 species with stems usually bearing finely dissected leaves and 

 minute bladders : marsh species with a few bladder-bearing leaves 

 or rootlets under ground. Flowers racemose or solitary at the 

 summits of slender scapes, the pedicels two-bracteolate. Calyx 

 deeply two-lobed, the lobes equal or nearly so. Corolla bilabiate, 

 the upper lip usually erect and entire ; the lower larger, 3-lobed, 

 spurred at the base and with a prominent palate, commonly 

 bearded in the throat. Capsule many- seeded. 



U. vulgaris L. Sp, 18. Stem long and rather stout, densely leafy: 

 leaves 2-3-pinnately divided into filiform segments, very bladdery : blad- 

 ders about 2 lines long: scapes a foot or less long, 5-16 flowered : corolla 

 yellow, half inch or more broad, with sides of lips reflexed ; upper lip nearly 

 entire, hardly longer than the prominent palate ; the lower one slightly 

 3-lobed and longer than the conic, blunt or acutish somewhat curved spur. 

 Slow streams and ponds, Brit. Columbia to California and across the 

 Continent : Europe and Asia. 



U. occidentalis Gray Proc. Am. Acad, xix, 95. Stems filiform, 8-10 

 inches long: leaves scattered, repeatedly dichotomously divided, the small 

 setaceous segments a line or two long : scapes 6-10 inches high, 3-5-flower- 

 ed: corolla yellow, 4-6 lines long: upper lip a little longer than the broad 

 rounded palate; spur broadly conical, acutish, 2 lines long, ascending. 

 In shallow' water on boggy meadows near the base of Mount Adams, 

 Washington. 



U. minor L. Sp. 18. Stems slender, floating, short: leaves much 

 scattered dichotomously divided, the divisions few and setaceous : bladders 

 borne among the leaves, few, often none, the largest not over a line long: 



