202 American Midland Naturalist Monograph No. 2 



7. Anagallis L. — Pimpernel 



A. arvensis L. Waste places, occasional; nat. from Eurasia and Africa. 

 June-Aug. 



8. Lysimachia L. — Loosestrife 



(Sleironema Raf.) 

 1. Leaves gland-dotted (sometimes obscurely so). 



2. Plants more or less pubescent; corolla not dark-streaked. 



3. Calyx 4-5 mm. long, often dark-margined; flowers in terminal leafy 

 panicles; roadsides and waste places, occasional; adv. from Eur. July- 

 Sept. Cook Co., Moffatt in 1906, Worthington in 1931; Antioch, 

 Lake Co., G. N. Jones 16509 L. vulgaris L. 



3. Calyx 7-10 mm. long, not dark-margined; flowers in axillary whorls; 



roadsides and waste places, occasional; adv. from Eur. June-July. 



Chicago, Worthington in 1933 L. punctata L. 



2. Plants glabrous or nearly so. 



4. Stem erect; leaves lanceolate or elliptical; corolla with purple streaks or 



dots. 

 5. Leaves usually whorled; flowers axillary; fields and open woods. June- 

 July. Known from Cook and Ogle counties. Whorled Loosestrife 



L. quadrifolia L. 



5. Leaves mostly opposite. 



6. Flowers in terminal racemes; corolla-lobes lanceolate; wet soil. 

 June-July. Known from Cook, Ogle, and Henderson counties. 



Swamp-candle L. terrestris (L.) BSP. 



6. Flowers in small head-like axillary spikes; corolla-lobes linear; wet 

 ground or shallow water in the n. third of the state. May-June. 



[Naumburgia thyrsiflora (L.) Duby] Tufted Loosestrife 



L. thyrsiflora L. 



4. Stem trailing; leaves opposite, roundish; flowers axillary; corolla not 

 purple-marked; moist ground, common; nat. from Eur. May-July. 



Moneywort L. nummularia L. 



1. Leaves not gland-dotted; stem erect; flowers nodding, on slender axillary 

 pedicels. 

 7. Leaves lanceolate to ovate, pinnately veined. 



8. Upper leaves broadly lanceolate to ovate, the long petioles conspicu- 

 ously ciliate; moist ground, common. June-Aug. Fringed Loosestrife 



L. ciliata L. 



8. Leaves elliptical-lanceolate, short-petioled; woods and thickets, common. 



June-Aug L. lanceolata Walt. 



7. Leaves linear, 1-veined, not ciliate; moist ground, locally throughout 111. 

 June-Aug. [L. longijolia Pursh] L. quadnflora Sims 



9. DoDECATHEON L. — ^Shooting-star 



1 . Leaves oblanceolate, tapering into the petiole. 



2. Mature capsules ellipsoid, thick-walled, reddish brown; anthers 7-10 mm. 

 long; corolla lilac to white; leaves often reddish at base; meadows, often 

 along railroads, throughout 111. May-June D. nieadia L. 



