I. MONANDRIA. 

 I. MOINTOGYNIA. 



1. SALICORNIA. Cal. turbinate, entire, somewhai 



ventricose, succulent. Cor. 0. Stam. 1-2. Style bi- 

 fid. Seed 1, covered by the inflated calyx. 



2. HIPPURIS. Cal. entire, very small. Cor. 0. Style 



received into a groove of the anther. Stig. simple. 

 Seed 1. 



II. DIGYNIA. 



3. CALLITRICHE. Cal. inferior 2-leaved. Pet. 0. 



Cap. 2-celled, 4-seeded, compressed. 



4. BLITUM. Cal. 3-cleft. Cor. 0. Seed 1, covered by 



the calyx, which becomes a berry. 



I. MONOGYNIA. 



I. SALICORNIA. Atriplices. Glasswort. 

 S. herbacea : annual ; stem erect or branched ; joints 



compressed, notched at the summits ; spikes pedun- 

 culate ; calyx truncate. 

 HAB. Salt-marshes. Aug. — Sept. 0. 6 — 10 in. high, 



fleshy, leafless ; style very short. 

 S. ambigua : perennial, procumbent, branching; 



joints crescent-shaped, small ; spikes opposite and 



alternate ; calyx truncate. 

 HAB. Salt-marshes. Jul.-Aug. $ or lj- Procumbent 



and assurgent; anth. purplish-yellow. 



2. HIPPURIS. Haloragece. Mare's tail. 



H. vulgaris : leaves verticillate in eights, linear-lan- 

 ceolate, acute. 



HAB. Ponds and lakes. Aug. If.. Erect, simple, l- ty 

 ft. ; flowers axillary, sessile, minute. 



