PRIMROSE FAMILY 187 



1. S. ciliatum Raf. FRINGED LOOSESTRIFE. Stems erect, slender, 

 simple or branched, 1-3 ft. high. Leaves opposite, ovate to ovate- 

 lanceolate, acute at the apex, rounded at the base; margins and 

 petioles hairy-fringed. Flowers solitary on axillary peduncles, f-1 in. 

 broad; petals broadly ovate or roundish, denticulate; calyx shorter 

 than the capsule. Woods and thickets.* 



2. S. lanceolatum Gray. LANCE-LEAVED LOOSESTRIFE. Stem 

 erect, 6-24 in. high. Leaves varying from lanceolate to oblong and 

 linear, petioled or almost sessile, acute or taper-pointed. Flowers 

 f-| in. in diameter. Capsule nearly as long as the segments of the 

 calyx. In moist ground and thickets. 



3. S. quadriflorum Hitchc. LINEAR-LEAVED LOOSESTRIFE. Stem 

 erect, 4-sided, slender, 1-3 ft. high. Basal leaves oblong or linear- 

 oblong, on slender petioles ; stem leaves, all but the lowest, nearly 

 or quite sessile, narrowly linear, 2-4 in. long, smooth and shining. 

 Flowers about in. in diameter, often clustered in fours at the ends of 

 the branches. Corolla lobes pointed. Along streams, especially N.W. 



V. TRIENTALIS L. 



Low, smooth, perennial herbs, with slender, erect, un- 

 branched stems. Leaves lanceolate, ovate, or oblong, mostly 

 in a whorl at the summit of the stem. Flowers one or few, 

 terminal, on slender peduncles, small, white or pink. Sepals 

 narrow and spreading. Corolla wheel-shaped, with usuallj 

 7 taper-pointed segments. Ovary globose ; style thread-like. 

 Capsule globose, many-seeded. 



1. T. americana Pursh. STAR FLOWER, CHICKWEED WINTER- 

 GREEN. Spreading by long and slender rootstocks; branches erect, 

 stem-like, 3-9 in. high. Leaves very thin, pale green, pointed at both 

 ends. Flowers white. Capsules white, marked off into polygonal 

 sections, each corresponding to 1 seed. Cold woods ; common N. 



VI. ANAGALLIS L. 



Annual or perennial herbs. Stems erect or diffuse. Leaves 

 opposite or whorled. Flowers axillary, peduncled. Calyx tube 

 5-parted, persistent. Corolla wheel-shaped, 5-parted, longer 

 than the calyx. Stamens 5, inserted on the base of the corolla ; 

 filaments bearded. Ovary globose ; style slender ; stigma 

 knobbed. Fruit a many-seeded capsule, the top coming off 

 like a lid.* 



