2IO PINGUICULACEAE (BLADDERWORT FAMILY) 



BB. Pedicels 0-3 mm. long; stem simple. E. O. ludoTlclana 



AA. Calyx lobes equaling or shorter than the tubes; stem branched above; flowers 



nearly sessile. E. O. plnonim 



PINGUICULACEAE (Bladder wort Family) 



Herbs, in water or on damp soil. Flowers perfect; pedicels brac- 



teolate. Calyx 2-5-parted. Corolla spurred at base, 2-lipped; 



upper lip plicate, entire or 2-lobed; lower lip larger, 3-lobed, with 



, a palate. Stamens 2. Ovary superior, ovoid or globose, i-celled; 



style short or none; stigma 2-lobed. Fruit a capsule. Seeds many. 



A. Terrestrial plants; leaves entire; flowers purple-violet. W. C. E. — (L. pin- 

 guis = fat; the leaves have a fatty feel.) Pinguicula vulgaris (eutterwoet) 



AA. Aquatic or marsh plants; leaves dissected or apparently none; flowers yellow. 



UTRICULARIA (p. 210) 



UTRICULARIA (Bladderwort) 



Free-floating or mud-anchoring. Leaves finely divided in nearly all, 

 sometimes apparently none, bladder-bearing in most water species, vfiih a 

 few mud-covered bladders or none in mud species. Flowers yellow, con- 

 spicuous, elevated above the water, very rare. 



A. Leaf segments terete, their margins entire. 

 B. Leaves 12-25 mm. long, 2-3-pinnately segmented, very bladdery; bladders 3-4 

 mm. long. W. C. E. TJ. vulgaris 



BB. Leaves 4-8 mm. long, several times forked, with few or no bladders; bladders 

 1-2 mm. long. 

 C. Corolla spur shott, obtuse. W. C. U. minor 



CC. Corolla spur conic, acute. C. U. occidentalis 



AA. Leaf segments flat, their margins minutely bristle-toothed; leaves 6-12 mm. 

 long, repeatedly forked; bladders nearly always on leafless branches. C. E. 



U. intermedia 



PLANTAGINACEAE (Plantain Family) 



Herbs, acaulescent. Leaves basal. Flowers small, perfect or im- 

 perfect, in spikes or heads; clusters te^rrmnai, on scapes. Calyx 

 4-parted, persistent. Corolla scarious or membranous, 4-lobed. 

 Stamens 2 or 4, on the corolla. Ovary superior, 1-4-celled; style i. 

 Fruit a capsule, opening by a Kd. Seeds 1 to several. — Only the 

 following genus. 



PLANTAGO (Plantain) 



Flowers greenish or purplish. — (The Latin name.) 



A. Leaves ovate. W. C. E. P. major (common plantain) 



AA. Leaves lanceolate. 



B. Seeds 1-2, flat or concave on the face. 



