PRIMULACE/E. (PRIMROSE FAMILY.) 299 



acute, on long slender petioles ; peduncles louger than the leaves ; corolla as 

 long as the calyx. Swamps and marshy banks of streams, in the upper dis- 

 tricts. July. Stem '2 - 3 long. Flowers smaller than in any form of the 

 preceding. 



4. DODECATHEON, L. AMERICAN COWSLIP 



Calyx 5 cleft, the lobes reflexed. Corolla tube very short, the 5-parted 

 linil) renexed. Stamens 5, the filaments mouadelphous at the base : anthers 

 long and linear, erect. Capsule oblong-ovate, 5 valved at the apex, many- 

 seeded. Stemless herbs. Leaves radical, clustered, spatulate or oblong. 

 Flowers umbellate, terminating the naked scape, white or purple. 



1. D. Meadia, L. Smooth; leaves entire or obscurely crunate; umbel 

 bracted, many-flowered; flowers showy, nodding. Woods in the upper dis- 

 tricts. May- June. 11 Scape 1 high. Leaves 4'- 6' long. 



5. ANAGALLIS, L. PIMPERNEL. 



Calyx 5-parted. Corolla wheel-shaped, 5-parted, longer than the calyx. 

 Stamens five : filaments bearded. Capsule globose, opening transversely, 

 many-seeded. Low herbs, with opposite or whorled leaves, and axillary 

 peduncled flowers. 



1. A. arvensis, L. Stem branching, spreading, 4-angled ; leaves ovate, 

 sessile ; peduncles longer than the leaves, nodding in fruit ; flowers red. 

 Fields and pastures. Introduced. July. (T) Stem 6' long. 



6. CENTUNCULUS, L. 



Calyx 4 -5-parted. Corolla bell-shaped, 4-5-cleft, shorter than the calyx. 

 Stamens 4-5, beardless. Capsule globose, many-seeded, opening trans- 

 versely. Small annuals, with alternate leaves, and minute axillary white 

 flowers. 



1. C. minimus, L. Stem 3-angled, ascending, mostly branched; leaves 

 obovate, acute ; flowers often clustered. Low ground near the coast. 

 March -April. Stem T-6' long. 



2. C. pentandrus, TC. Br. Stems erect, simple (4'- 8' high); leaves 

 oval or roundish, mucronate ; peduncles 2-3 times the length of the pentan- 

 drous flower ; lobes of the calyx and corolla 4 or 5. Low ground along the 

 Caloosa River, South Florida. Oct. 



7. SAMOLUS, L. 



Calyx 5-cleft ; the tube adherent to the base of the ovary. Corolla salver- 

 shaped, 5-parted, commonly with slender filaments interposed. Stamens 5, 

 included. Capsule 5-valved at the apex, many-seeded. Smooth and some- 

 what fleshy marsh herbs, with alternate entire leaves, and small white flowers 

 in terminal racemes. 



1. S. floribundus, Kunth. Stem at length much branched; leaves 

 obovate, the lowest tufted, spreading, the others scattered; racemes many- 



