86 American Midland Naturalist Monograph No. 7 



8. Flowers few, usually solitai-y; plants not glaucous; calyx sub- 

 cylindrical; wooded ravines, infrequent; June-July 



S. nivea (Nutt.) Otth 



1. Leaves mostly in whorls of four, acuminate; petals white, 1.5-2 

 cm long; calyx campanulate, 1-1.5 cm long; woods throughout 

 111. June-Aug. Almost all 111. plants are more or less puberu- 

 lent [var. scabrella (Nieuwl.) Steyerm.J Occasionally specimens 

 from s. 111. are glabrous or nearly so S. stellata (L.) Ait.f. 



10. Lychnis L. — Campion 



{Melayidrium Roehl) 



1. Flowers white, red, or pink; plant viscid-pubescent or hirsute. 

 2. Flowers white, opening in the morning; plants viscid-pubescent; 

 fields and roadsides; nat. from Eur. May-Aug. Evening- 

 Campion L. alba Mill. 



2. Flowers red, opening in the evening; plants puberulent to 

 hirsute; waste places; adv. from Eur. June-Aug. Red 



Campion L. dioica L. 



1. Flowers crimson; plants white-woolly throughout; waste places, 



occasional; introd. from Eur. June-Aug. Mullein Pink 



L. coronaria (L.) Desr. 



1 1. Saponaria L. 



{Vaccaria Medic.) 



1. Calyx terete; flowers 2-3 cm in diameter (sometimes double), in 

 dense corymbiform cymes; plants perennial; roadsides, com- 

 mon; adv. from Eur. June-Sept. Bouncing Bet S. officinalis L. 



1 . Calyx sharply 5-angled ; flowers 6-8 mm in diameter, few, in a 

 loose cyme; plants annual; roadsides and fields; adv. from Eur. 

 June-Aug. Cow-herb. [Vaccaria segetalis (Necker) Garcke] 

 S. vaccaria L. 



12. Dianthus L. — Pink 

 1 . Flowers numerous. 



2. Leaves 10-20 mm wide; plants perennial; introd. from Eur.; 



Jackson Co. Sweet William D. barbatus L. 



2. Leaves 2-8 mm wide; plants annual; along roads or in pastures, 



occasional. June-Aug. Deptford Pink D. armeria L. 



1. Flowers solitary; adv. from Eurasia; known from Piatt and Ver- 

 milion counties D. dcUoidcs L. 



13. Tunica Scop. — Saxifrage Pink 

 T. saxifraga (L.) Scop. Roadsides and waste places; adv. from 

 Eur. 



25. Portulacaceae Reichenb. — Purslane Family 

 1. Leaves several, clustered at the base of the stem, terete; petals rose; 



capsule papery, opening by 3 valves 1. Talinum 



1. Leaves not all clustered at the base of the stem. 



