I. MONANDRIA. 



Genera. I. MONOGYNIA. 



1. SALICORNIA. Cal. turbinate, entire, somewhat veiitricose, succu- 

 lent. Cor. 0. Stum. 1-2. Style bifid. Seed 1, covered ay the inflated 

 calyx. 



II. DIGYNIA. 



2. CALLITRICHE. Cal. inferior 2-leaved. Pet. 0. Cap. 2-celled, 

 4-seeded, compressed. 



I. MONOGYNIA. 

 species. 1. SALICORNIA. Glass wort. 



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



notched at the summits ; spikes pedunculate ; calyx truncate. 

 HAB. Salt-marshes. Aug. Sep. <2). 6 W in. high, jleshy, leafless j 



style very short. 

 S. ambigua : perennial, procumbent, branching ; joints crescent-shaped. 



small ; spikes opposite and alternate ; calyx truncate. 

 HAB. Salt-marshes. Jul. Aug. $ or F> . Procumbent and assur- 



gent ; anth. purplish-yellow. 



II. DIGYNIA. 

 CALLITRICHE. Water-Chickweed. 



1. C. verna b. intermedia: upper leaves spathulate-obovate, infenof 

 ones lined, obtuse, and emarginate ; flowers polygamous ; margin of 

 the capsule obtuse. 



HAB. Floating in shallow waters. Apr. Aug. <v). Uppermost leaves 

 stellate, 3-nerved ; Jlowers axillary ; superior ones stamenif., mid- 

 dle ones perfect, lowest ones pistilif. 



II. DIANDRIA. 

 I. MONOGYNIA. 



* Flowers complete, inferior ; 1-petalled. 

 Genera. f Fruit a drupe ^ nut 



3. LIGUSTRUM. Cal. 4-toothed. Cor. 4-cleft. Berry 2-celled ; cells 



2-seeded. 



4. VERONICA. Cal. 4-parted. Cor. rotate, 4-lobed, unequal ; the 



lower segment narrower. Caps. 2-celled, obcordate ; seeds few. 

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