PRIMROSE FAMILY 651 



3. T. arctica Fisch. Stem about 1 dm. high; upper leaves verticillate, 

 obovate, roimded or obtuse at the apex, cuneate at the base, 1-4 cm. long, entire 

 or nearly so; corolla 10-15 mm. in diameter; lobes ovate. Wet places: Alaska — 

 Yukon— B.C.— Ore. Subalp. My-Jl. 



6. LYSIMACHIA (Tourn.) L. Loosestrife. 



Perennial or rarelj' annual caulescent herbs. Leaves opposite or whorled, 

 entire, glandular-punctate. Flowers axiUarA', solitarj- or in terminal or axillary 

 racemes. Sepals 5, practically distinct. CoroUa rotate or short-funnelform, 

 yellow, its lobes entire, convolute. Stamens 5; staminodia wanting; filaments 

 united at the base; anthers short. Styles filiform; ovary l-ceUed. Capsule 

 globose, few-several-seeded. 



1. L. terrestris (L.) B.S.P. Glabrous perennial, vriih. a rootstock, and 

 often bulbiferous in the axils; leaves opposite or some of them alternate, lanceo- 

 late, acute at both ends, usually black-punctate, 2-8 cm. long; flowers in term- 

 inal bracted racemes; corolla rotate, deepty parted, j-ellow with purple streaks 

 or dots, nearlv as long as the sepals. L. sir icta Ait. In swamps: Newf. — Ga. — ■ 

 Ark.— Sask.-^B.C. Boreal. Jl-S. 



7. STEIRONEMA Raf. Fringed Loosestrife. 



Perennial, caulescent herbs. Leaves opposite, or whorled above, entire, with 

 cihate petioles, without glandular dots. Flowers axillary, solitary, on nodding 

 pedicels. Sepals 5, essentially distinct. Corolla rotate, yellow, o-lobed, the 

 lobes erose-denticulate. Stamens and staminodia 5; filaments distinct; anthers 

 linear. Style fihform; ovary 1-celled. Capsule round, 10-20-seeded. 



1. S. ciliatum (L.) Raf. Perennial, with a horizontal rootstock; stem 3-12 

 dm. high, glabrous; leaves with cihate petioles; blades ovate or lanceolate, acute 

 or acuminate at the apex, acute, rounded, truncate, or subcordate at the base, 

 5-15 cm. long, glabrous except the ciliolate margins; peduncles axillary-, 1-5 cm. 

 long; coroUa 1.5-2.5 cm. broad, yellow; lobes erose-denticulate, broadly obovate. 

 Moist thickets and swamps: N.S. — Ga. — Ariz. — B.C. Plain — Submont. Je~ 

 Au. 



8. NAUMBtJRGIA Moench. Tufted Loosestrife. 



Erect perennial caulescent water-herbs. Leaver opposite, entire, narrow. 

 Flowers in axillarj- spikes. Sepals 5-7, linear, imbricate. Corolla 3'ellow, deeply 

 5-7-parted, u-ith narrow segments. Stamens 5-7, alternating with as many 

 tooth-like staminodia; filaments slender, glabrous. Style slender; stigma capi- 

 tate. Capsule 5-7-valved, few-seeded. 



1. N. thyrsiflora (L.) Duby. Perennial, with a rootstock; stem 3-8 dm. 

 high, simple, glabrous or slightly villous; leaves sessile, 5-10 cm. long, lanceolate 

 to linear-lanceolate, acute: racemes 1-2.5 cm. long; flowers nearly sessile, crowded; 

 corolla 4-6 mm. broad, yellow, with black spots; divisions linear. In water and 

 swamps: X.S. — Pa. — Colo. — Calif. — Alaska; Eurasia. Plain — Submont. Mv- 

 Jl. 



9. ANAGALLIS (Tourn.) L. Poor Man's or Shepherd's 

 Weatherglass, Pimpernel. 



Annual or rarely perennial decumbent, caulescent herbs. Leaves mostly 

 opposite or whorled, entire. Flowers axillary, solitary, on slender pedicels. 

 Calyx 5-cleft, persistent. Corolla blue, pink, or white, rotate; lobes 5, entire, 

 convolute. Stamens 5; filaments slender, adnate to the base of the corolla, 

 sometimes pubescent. Style filiform; stigma capitate; ovary 1-ceUed; ovules 

 half-anatropous. Capsule circumscissile, subglobose; seeds numerous. 



1. A. arvensis L. A glabrous annual; stems spreading, 5-30 cm. long, 

 4-angled; leaf -blades ovate or oval, 5-20 mm. long, entire, sessile or clasping; 

 peduncles axillary, filiform, 1-2 cm. long; corolla scarlet, pink, or white, 5-7 mm. 

 broad. Waste places: Ne%\-f. — Fla. — Calif. — B.C.; Mex.; nat. from Eurasia and 

 Africa. Je-Au. 



