■)0 CAnYOrilVI.LACK.K. (I'lXK 1 AMII.V.) 



1. S. pubera, Midix. IVrcnnial ; stfms iicrt or diffuse, forking, hairy in 

 lines ; letives ohlon;;;, uciitish, imrrowed at tlie liiise, sessile ; petals loii|;er than 

 tlie M'jials. — Siiady rocks in tlic upper distrieU and nortiiwurd. Ajiril and 

 May. — Steins G'-12' liigli. Flowers siiowy. 



2. S. media, Smith. Annual; steins ])rostrate, f(jrkinjr, p"l>esecnt in lines; 

 leaves ovate or oblong, aeute, the lower ones pctioled ; petals shorter tluiii tho 

 sepals. — Yards and gardens. Mareh and April. Introduced. 



3. S. prostrata, Baldw. Smooth or nearly so ; stems forking, prostrate ; 

 leaves ovate, acute, all on slender petioles, the lower ones often eonlate ; ]>ctal3 

 twice as long as the sepals ; seeds rough-edged. — Damp shades, Georgia, Flor- 

 ida, and westward. March and April. Q, — Stems l°-2° long. Petiole 

 jnostly longer than the limb. 



4. S. uniflora, Walt. Smooth; stemsereetfromaprostrateba.se; leave* 

 remote, narrow-linear, sessile ; peduncles very long (2' -4'), erect; petals obcor- 

 date, twice as long as the calyx. — Hiver swamps, South Carolina and North 

 Carolina. May. ® •? — Stems 6'-12' high. Leaves 1' long. — Perhaps a 

 species of Alsinc. 



13. CERASTIUM, L. Mousk-ear. 



Sepals 4-5. Petals 4-5, obcordate or 2-cleft. Stamens 10. Styles 4-5. 

 Capsule cylindrical, 8 - 10-toothed, many-seeded. — Herbs. Flowers white, soli- 

 tary or cyniose, peduncled. 



* Petals not longer than the sepals. 



1. C vulgatum, L. Villous and somewhat clammy ; stems ascending ; 

 leaves oval, remote, tlie lowest obovate ; cymes crowded in the bud, spreading in 

 fruit ; sepals lanceolate, acute, as long as the i)eduneles, and half as long as the 

 slender capsule. — Fields, Florida and northward. April and Rluy. Q — 

 Stems 6'- 12' high. 



2. C. viscosum, L. Hairy and clammy ; stems ascending ; leaves lance- 

 oblong, obtuse, the lowest wedge-shaped; cymes loose in the bud ; sepals oblong- 

 ovate, obtuse, shorter than the peduncles. — Fields, Florida and northward. 

 April and May. Q) — Flowers and capsules larger than in No. 1. 



* * Petals longer than the sejHils. 



3. C. arvense, L. Hairy or downy ; stems numerous, naked above ; leaves 

 narrowlv or broadly lanceolate ; cymes rather few-flowered ; ])etals obcordate, 

 twice as long as the oblong sepals. — Rocky or dry soil, chiefly in the upper 

 districts. May and June. U — Stems 6' -12' high. Leaves seldom 1' long. 

 Flowers i' wide. Capsule rather longer than the calyx. 



4. C. nutans, Kaf Clammy-pubescent ; stems tufted, furrowed ; leaves 

 lanceolate ; cymes ample, many-flowered ; petals oblong, emarginate, rather 

 longer than the oblong sepals. — Low grounds. North Carolina and Tennessee, 

 and northward. ® — Stems 1° high. Peduncles long. Capsule curved, three 

 times as long as the calvx. 



