Genus 7. 



PRIMROSE FAMILY. 



715 



I. Naumburgia thyrsiflora (L.) Duby. Tufted 

 Loosestrife. Fig. 3297. 



Lysimachia thyrsiflora L. Sp. PI. 147. 1753. 

 Naumburgia guttata Moench, Meth. Suppl. 23. 1802. 

 Naumburgia thyrsiflora Duby, in DC. Prodr. 8 : 60. 1844. 



Glabrous or somewhat pubescent; stems simple, 

 erect, often tufted, i°-2i° high. Leaves 2-4' long, 

 4"-io" wide, the upper lanceolate or oblong-lanceo- 

 late, acute or acuminate at the apex, narrowed at the 

 base, the lower smaller, the' lowest reduced to ovate 

 scales or these deciduous ; peduncles solitary in the 

 axils, rather stout, i'-ii' long; racemes dense, oblong 

 or ovoid, i'-l' long, spike-like ; pedicels very short ; 

 flowers 2"-3" broad; sepals usually spotted; corolla- 

 segments yellow with black spots; style very slender; 

 anthers oblong; capsule globose, black-spotted, when 

 mature slightly longer than the sepals, shorter than 

 the style. 



In swamps, Nova Scotia to Alaska, south to southern 

 New York, Pennsylvania, Missouri, Nebraska, Montana 

 and California. Also in Europe and Asia. May-July. 



8. TRIENTALIS L. Sp. PI. 344. 1753. 



Glabrous low perennial herbs, with simple slender erect stems, and lanceolate ovate or 

 oblong leaves mostly clustered in a verticil at the summit. Flowers few or solitary, terminal, 

 slender-peduncled, small, white or pink, deeply 5-9- (mostly 7-) parted. Sepals narrow, per- 

 sistent, spreading. Corolla rotate, its tube almost none, its segments convolute in the bud, 

 acute or acuminate, entire; filaments united into a narrow ring at the base; anthers linear- 

 oblong, recurved after anthesis. Staminodia none. Ovary globose ; ovules numerous ; style 

 filiform. Capsule globose, 5-valved, many-seeded. Seeds trigonous or spherical. [Latin, 

 one-third of a foot, referring to the height of the plant.] 



Four species, of the northern hemisphere. Two others occur in northwestern America, the 

 typical T. europeaea L. in Europe and Asia. 



I. Trientalis americana Pursh. Star- 

 flower. Chickvveed Wintergreen. 

 Fig. 3298. 



Trientalii americana Pursh, Fl. Am. Sept. 256. 1814. 



Rootstock horizontal or creeping, sending up 

 simple stem-like branches s'-p' high, which are 

 naked or scaly below, the leaves all in a verticil 

 of S-io at the summit, long stolons sometimes 

 developed in their axils. Leaves membranous, 

 lanceolate or oblong-lanceolate, acuminate at both 

 ends, sessile or short-petioled, minutely crenulate, 

 ii'-4' long, 4"-is" wide; pedicels filiform, erect, 

 i'-2' long; sepals narrowly lanceolate or subulate, 

 cuspidate, about one-half as long as the oblong 

 or somewhat obovate corolla-segments ; flowers 

 4"-6" broad; capsule shorter than the sepals. 



In damp woods and thickets, Labrador to Manitoba, 

 southern New Jersey, Virginia, Illinois and Michigan. 

 May-June. 



9. GLAUX [Tourn.] L. Sp. PI. 207. 1753. 



herb, with opposite entire obtuse small fleshy leaves, 

 axillary pink or white flowers. Calyx S-parted, the 

 about equalling the campanulate tube. Corolla none, 

 calyx and alternate with its lobes ; filaments subulate- 

 their backs to the filaments. Ovary superior, ovoid, 

 ; stigma capitellate. Capsule globose-ovoid, beaked, 

 ellipsoid. [Greek, sea-green.] 

 sea-beaches and other saline situations in the northern 



A small succulent perennial leafy 

 and minute dimorphous nearly sessile 

 lobes petaloid, imbricated in the bud, 

 Stamens S, inserted at the base of the 

 filiform; anthers cordate, attached by 

 glandular; ovules few; style filiform 

 S-valved at the top, few-seeded. Seeds 



A monotypic genus of salt marshes, 

 hemisphere. 



