Lysimachia. 



PRIMULACEJE. 



11 



underneath. Racemes ovate or capitate, about an inch long ; the peduncle villous, an inch 

 or more in length. Calyx 6-7- (rarely 5-) parted, spotted with orange : segments linear- 

 lanceolate. Corolla yellow, deeply divided into 6 or 7 linear segments, which are often 

 scarcely at all spotted. Stamens 6 - 7, longer than the corolla : filaments slender, smooth, 

 united into a very short tube at the base, the intermediate teeth very minute : anthers small, 

 ovate. Ovary globose-ovate, spotted : style slender, about as long as the stamens : stigma 

 capitate. Capsule 5-valved, 5-seeded. 



Swamps, particularly where Sphagnum abounds ; not common. June. This agrees in all 

 essential characters with the European plant. Endlicher and Duby have revived the old 

 genus Naumbergia, which was established on this plant, but I think it is scarcely more than 

 a section of Lysimachia. The intermediate teeth or abortive stamens differ much in different 

 species, and in some they are wanting. 



3. TRIENTALIS. Linn. ; Endl. gen. 4208. chickweed wintergreen. 



[ From the Latin, triens, the third part of a thing; but the application of the name is not apparent.] 



Calyx 6 - 8-parted, spreading. Corolla rotate, 6 - 8-parted. Stamens 6 - 8 : filaments 

 slender : anthers oblong or linear. Ovary globose : style filiform : stigma obtuse. Capsule 

 globose, somewhat fleshy, 5-valved ; the valves revolute and deciduous. Seeds few, with 

 a reticulate membranaceous testa. — Humbb, smooth, perennial herbs, with entire ovate or 

 lanceolate leaves which are mostly aggregated in a whorl at the summit of the simple stem. 

 Peduncles one-flowered, slender, arising from the bosom of the leaves. 



1. Trientalis Americana, Pursh. Chickweed Wintergreen. 



Leaves all terminal, lanceolate, acuminate, minutely serrulate ; lobes of the corolla acumi- 

 nate.— Pursh, fl.l. p. 256 ; Bigel. fl. Bost. p. 145 ; Bart. fl. N. Am. 2. t. 48 ; Beck, hot. 

 p. 48 ; Darlingt. fl. Cest. p. 238 ; Hook. fl. Bor.-Am. 2. p. 121 ; Duby in DC. prodr. 8. 

 p. 59. T. Europasa, Michx. fl. 1. p. 220, not of Linn. T. Europsea, /3. angustifolia, Torr. 

 fl.l. p. 383. 



Root (or rhizoma) creeping, throwing up simple erect slender stems about a span high. 

 Leaves in a terminal imperfect whorl, with 2-3 smaller or scale-like ones on the stem, 

 thin, tapering at the base, 6-8 lines wide, finely serrulate under a lens. Peduncles 3-4, 

 filiform, 1-2 inches long. Calyx-segments subulate, cuspidate. Corolla white, deeply 

 7 - 8-parted ; the segments obovate-lanceolate, nearly twice as long as the calyx. Stamens 

 shorter than the corolla : filaments smooth : anthers linear, involute after flowering. Capsule 

 about half the size of a peppercorn, very thin, coriaceous, . 



Low shady woods, and in sphagnous swamps. Fl. May. Ft. July. 



2* 



