544 LENTIBULARIACE.E utricOlaria 



PINGUICULA 



scapes slender 2-7 inches high, racemosely 1-10-flowered : corolla pale 

 yellow, 2-3 lines broad, ringent, the upper lip smaller than the lower; spur 

 usually reduced to a broad blunt protuberance, shorter than the lips. In 

 shallow ponds and bogs, Brit. Columbia to California and across the 

 Continent : also Europe. 



U. intermedia Hayne in Schrad. Journ. Bot. i, 18. Stems floating 

 2-6 inches long: leaves 3-6 Jines long, more or less scattered, 2-ranked» 

 repeatedly dichotomous, the segments linear, flat, the margins bristly- 

 ciliate : bladders with rare exceptions borne on leafless branches : scapes 

 capillary, 2-10 inches high, naked, or with a few scales, 1-5-flowered: 

 corolla 6 lines broad, its lower lip broad with a large palate and exceeding 

 the upper one : spur conic, subacute, nearly as long as the lip, to which it in 

 appressed. In shallow water, Brit. Columbia to California and across the 

 continent : also in Europe. 



2 PINGUICULA L. Sp. 17. 



Acaulescent herbs with fibrous roots, entire rosulate- tufted 

 leaves, the upper surface covered with a viscid secretion to which 

 insects adhere and are captured by the involution of the sensitive 

 margins, and naked one-tiowered scapes. Calyx 4-5-parted, or 

 bilabiate, the upper lip 2-parted, the lower 3-parted. Corolla bi- 

 labiate, the upper lip 2-cleft, the lower 3-cleft ; the base produced 

 into a nectariferous spur. Capsule 2-valved, or 4-valved. Seeds 

 oblong, wrinkled or reticulated. 



P. vulgaris L. Sp. 17. Scapes glabrous or minutely puberulent, 2-6 

 inches high, recurved at the apex and bearing a single large blue flower: 

 leaves 3-7 in a rosette at the base of the scape, greasy to the touch on the 

 upper side, ovate to lanceolate, obtuse, 1-2 inches long, short-petioled or 

 sessile : corolla 3-5 lines broad when expanded, bilabiate, the upper lip 

 2-lobed, the lower 3-lobed, larger, the tube gradually contracted into an 

 acute or obtuse nearly straight spur 2-4 lines long: capsule globose-ovoid, 

 longer than the calyx. On wet rocks, southern Oregon to Alaska and 

 across the Continent : also Europe'andJAsia. 



Order LXXI LABIATE B. Juss. Hort. Trian. 1759. 



Herbs shrubs or rarely trees, mostly aromatic, usually with 

 square stems, simple opposite leaves without stipules and rather 

 small perfect flowers usually clustered in the axils of the upper 

 leaves or bracts. Calyx 3-5-cleft, 3-5-toothed or bilabiate, 

 persistent. Corolla bilabiate; upper lip 2-lobed or entire, the 

 lower 3-cleft or 3-parted, or rarely as if 4 lobes in the upper 

 and one in the lower lip. Stamens mostly 4 and didynamous, 

 rarely equal, sometimes only two with or without staminoidea; 

 filaments distinct, mostly slender, alternate with the lobes of 

 the corolla. Anthers introrse, 2-celled or confluently 1-celled, 

 or sometimes of a single cell. Ovary 4-lobed or 4-parted, su- 

 perior, each lobe or division with 1, mostly anatropous, ovule. 

 Style arising from the centre of the lobed or parted ovary, 

 filiform, 2-cleft at the apex, often unequally so, or one of the 

 cells obsolete : stigma minute, usually 2-lobed. Fruit of 4 one- 

 seeded nutlets. Seeds erect from the base of the nutlet, mostly 



