70 ELEMENTS OF BOTANY. 



long and naked peduncles in terminal corymbs ; calyx tubu- 

 lar, the tube oblong, 10-ribbed, lobes elongated, foliaceous, 

 deciduous ; petals 5, shorter than the calyx lobes, entire ; 

 stamens 10 ; styles 5, capsules 1-celled. 



A. GiTHAGO L. Corn Cockle. Stem erect, rather slender, 1- 

 3 ft. tall, gray with long, appressed hairs ; leaves linear-lanceolate, 

 acuminate, erect, 2-4 in. long; petals obovate, emarginate, purple; 

 capsule 5-toothed, many-seeded, seeds black. June-July. An intro- 

 duced weed, common in grain fields. 



11. SILENE. 



Annual or perennial herbs ; stems erect, or decumbent and 

 diffuse ; leaves often connate or whorled ; flowers clustered 

 or solitary, usually pink or white ; calyx tubular, more or less 

 inflated, 5-toothed, 10-nerved, bractless ; petals 5, long-clawed, 

 and, with the ten stamens, inserted at the base of the ovary ; 

 styles 3, ovary 1-celled or 3-celled at the base, opening by 6 

 teeth, many-seeded, seeds usually roughened. 



1. S. 8TELLATA (L.) Ait. Starry Campion. Perennial; stems 

 erect, downy, branching above, 2-3 ft. tall ; leaves in whorls of 4, or 

 the upper opposite, ovate-lanceolate, acuminate, sessile, ciliate on 

 the margins ; flowers in panicled cymes, white, | in. broad ; calyx 

 inflated, bell-shaped, the teeth triangular ; petals fimbriate on the 

 margin, crownless. June- July. Dry fields and woods, especially 

 northward. 



2., S. Baldwinii Nutt. Baldwin's Pink. Perennial; stems 

 low, slender, villous, producing long runners from the base, 6-12 in. 

 high; leaves opposite, spatulate or oblong, sessile; flowers large, 1^- 

 2 in. wide, white or pale rose-colored, on slender pedicels ; calyx tubu- 

 lar ; petals fimbriate on the margins, crownless. April-May. In 

 low shady woods, especially southward. 



3. S. REGiA Sims. Royal Catchfly. Perennial ; stem stout, 

 erect, viscid-pubescent, branched, 2-4 ft. tall ; leaves ovate-lanceolate, 

 acute or acuminate, the lower petioled, the upper sessile ; flowers in a 

 narrow panicle, bright scarlet, 1 in. broad, pedicels about ^ in. long ; 

 calyx cylindrical, striate, enlarged by the ripening capsule, teeth 

 ovate, acute ; petals emarginate or nearly entire, crowned ; stamens 

 and style exserted. June-July. Open woods and prairies. 



