292 PRIMULACEvE. 



Stem 2 3 feet high, square, sparingly branched. Leaves large, not punctate. 

 Mowers large, yellow. Ciliate Loosestrife. 



5. L. hybrida Mich. : stem smooth ; leaves petioled, opposite, lanceolate, 

 acute at each end ; petioles ciliate ; peduncles axillary, mostly in pairs, 

 1-flowered ; flowers nodding ; corolla scarcely longer than the calyx. L. 

 heterophylla Nutt. 



Moist grounds. N. Y. to Car. July. fy. Resembles the preceding species, 

 but the leaves are narrower and never cordate at base, and the petioles are less 

 ciliate. Hybrid Loosestrife. 



6. L. capitata Pursh : nearly smooth; stem simple; leaves opposite, ses- 

 sile, lanceolate, punctate ; peduncles axillary, elongated ; flowers in dense 

 roundish heads, 5 7-parted. L. thyrsifolia Mich. Naumbergia thyrsifolia 

 D. C. 



Swamps. N. S. N. to Arct. Amer. June. Q.Stem 12 feet high. Leaves 

 yillous beneath. Flowers yellow, in roundish or ovate heads which are on ax- 

 illary peduncles. Capitate Loosestrife. 



7. ANAGALLIS. Linn. Pimpernel. 



(From the Greek avayc\au, to laugh ; on account of its supposed exhilarating 

 virtues.) 



Calyx 5-parted. Corolla rotate, deeply 5-parted. Stamens 

 5 ; filaments hairy. Capsule globose, opening hemispherically, 

 many-seeded. 



A. cirvensis Linn. : stem procumbent, branched ; leaves opposite, ovate, 

 sessile, dotted beneath, very entire ; margin of the corolla crenate and pi- 

 lose-glandular. 



Fields and road sides. N. Y. Mass, to Car. June Oct. ([) Stem 410 

 inches long. Flowers scarlet, sometimes with a purple centre, on solitary axil- 

 lary peduncles which are longer than the leaves. Scarlet Pimpernel. 



8. SAMOLUS. Linn. Water Pimpernel. 

 (Supposed to have been named from the island of Samos.) 

 Calyx 5-cleft, the base adnate to the ovary. Corolla salver- 

 form, 5-parted, with 5 scales, (sterile filaments,) alternating with 

 the lobes ; tube short. Fertile stamens 5, inserted on the tube 

 of the corolla. Capsule half inferior, 1 -celled, many-seeded, 

 opening with 5 valves. 



S. Vakrandi Linn.: stem erect; leaves obovate; racemes elongated, 

 loose, many-flowered ; pedicels with small bracts. 



Wet grounds. Can. to Car. July Sept. 1].. Stem 8 12 inches high, 

 smooth. Leaves obovate, subpetiolate, entire and somewhat fleshy. Flowers 

 small, white. This plant is very generally distributed throughout the world. 



Common Water PimpemeL 



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