52 MALVACEAE. (mALLOW lAMII.V.) 



* * Annuals: Jlowers small, crowned, expanding <it uiijht. 



8. S. Antirrhina, L. Stem sknikT, smootliisli, ilaiiiiiiy l)t;low tlic iipjXJr 

 joints ; lia\ cs linear, aciiti', sessile, tiie lowest lanceolate, narrowed into a j)etiole ; 

 flowers paniiled ; calyx smooth; j)Ctals obcordate, rose-colored. — Dry old 

 fields, Florida and northward. May and June. — Stems 6' - 2° high, simple or 

 branched. Flowers miimte. 



9. S. quinquevulnera, L. Hairy ; stem branching ; leaves spatulato, 

 the upper ones linear; flowers in 1-sidcd racemes; calyx hairy; petals rounded, 

 entire, pink or crimson with a paler border. — Near Charleston. Naturalized. 



— ytcm l^high. 



15. SAPONARIA, L. Soapwokt. 



Calyx tubular, terete, 5-toothed. Petals long-clawed. Stamens 10. Styles 

 2. Capsule sessile or short-stiped, 1-eelled, or 2-eellcd at the base, 4-toothed at 

 the apex. — Cymes dense-flowered. 



1. S. officinalis, L. Perennial; stems stout, erect, smooth ; leaves ovate, 

 connate, strongly 3-ribbcd ; petals crowned, white or rose-color, mostly double. 



— "Waste places. Naturalized. — Stems l°-2° high. 



16. AGROSTEMMA, L. Corn-Cockle. 



Calyx tubular, with 5 elongated linear deciduous lobes. Petals 5, entire, 

 crownless. Stamens 10. Styles h. Capsule 1 -celled, .5-toothcd. — Annual or 

 biennial pubescent herbs, with linear leaves, and showy purple flowei-s on elon- 

 gated peduncles. 



1. A. GithagO, L. Plant (l°-2° high) whitened with long appresscd 

 hairs ; stem forking ; petals obovate, emarginate, shorter than the lobes of the 

 calyx. — Grain fields. Introduced. June and July. (T) — Peduncles 4' -6' 

 long. Flowers 1' wide. 



Ordek 22. MALVACE^. (IMalloav Family.) 



Mucilaginous herbs or shrubs, •with palmatcly veined alternate stipulate 

 leaves, and regular monadelphous flowers on jointed j)edun<'les. — Sepals 

 5, united at the base, valvate in the bud, persistent, often with a calyx- 

 like involucel. Petals 5, convolute in the bud. Stamens numerous, united 

 into a column which is continuous with the claws of the jxitals: anthei-s 

 l<-elled, opening transversely. Ovaries united into a ring, or forming a 

 several-celled capsule. Styles separate or united. Seeds kidney-shaped. 

 Albumen scarce or none. Embryo large, curved, with leafy cotyledons. 

 Pubescence commonly stellate. Pollen grains hispid 



Synopsis. 



TbibeI. MAIiVEjE. — Carpels as many as the stigmas, 1 - few-seeded, disposed in a circle 

 around a central axis, separating at maturity from the axis and from each other. An- 

 thers borne at the apex of the column. 



