The Ohio Naturalist. 
LVol. XIII, No. 8, 
180 
5. Cerastium arvense webbii Jennings. Plant more or less 
viscid-pubescent, 12 to 18 inches high. Lower leaves oblong- 
lanceolate, upper ones ovate-lanceolate, 1J^ to 2 inches long; 
flowers arranged in strict cymes. Cuyahoga. 
Spergula L. 
Annual herbs. Leaves subulate, stipulate, arranged in 
fascicles in the axils; flowers white, in terminal cymes; sepals 
5; petals 5; stamens 10 or 5; styles 5, alternate with the sepals. 
1. Spergula arvensis L. Com Spurry. Glabrous or finely 
pubescent, 9 or 10 inches high. Leaves linear or subulate; 
stipules small, connate; pedicels slender, divaricate. Lake County. 
Tissa Adans. 
Low herbs with fleshy, linear, or setaceous leaves; often ar¬ 
ranged in fascicles in the axils; stipules scarious; flowers pink or 
white in terminal cymes; sepals 5, petals 5, rarely fewer or none, 
entire, stamens 2 to 10. 
1. Tissa rubra (L) Britt. Sand-spurrv. Annual or perennial, 
depressed or ascending, leafy, glabrous or glandular-pubescent 
above; 5 to 7>^ inches high; leaves linear, l /i inch long; flowers 
bright pink; stipules ovate-lanceolate, acuminate; sepals ovate- 
lanceolate, somewhat acute. Lake County. 
Agrostemma L. 
Annual or biennial, pubescent or wooly herbs. Leaves oppo¬ 
site, linear or linear-lanceolate, acute or acuminate, sessile ;flowers 
red or white, solitary; petals 5, shorter than the sepals, unap- 
psndaged, emarginate; calyx oblong, wooly, 10-ribbed; sepals 5, 
linear, elongated and foliaceous, stamens 10, styles 5, opposite the 
petals. 
1. Agrostemma githago L. Corn Cockle. Plant erect, 12 to 
40 inches high, covered with long, whitish, appressed hairs; leaves 
linear-lanceolate; calyx ovoid, sepals exceeding the petals and 
deciduous in fruit; flowers red, petals slightly emarginate. obovate- 
cuneate. General. 
Lychnis L. 
Mostly mere or less pubescent herbs. Sepals 5, petals 5, entire, 
2-cleft or laciniate, generally crowned; stamens 10; styles 5, rarely 
4 ; calyx ovoid, tubular or inflated, 10-nerved. 
1. Plant entirely pubescent, viscid. 2. 
1. Plant having viscid-pubescent bands on the stems. L. viscaria. 
2. Calyx-teeth twisted; plant densely white-wooly. L. coronaria. 
2. Calyx teeth not twisted; only ordinarily pubescent; usually diecious. 3. 
3. Flowers white or pink; calyx teeth attenuate. L. alba. 
3. Flowers red; calyx teeth triangular-lanceolate, acute. L. dioica. 
