AcNiDA. chenopodiacej:. 139 



Stem 3-6 feet high, more or less branching, rather succulent. Leaves varj'ing from 

 ovate- to linear-lanceolate, tapering to a long rather obtuse point, acute at the base, petiolate. 

 Racemes or spikes 3-8 inches long, leafy; the flowers sessile. Sterile fl. Sepals oblong, 

 obtuse, somewhat concave. Stamens as long as the calyx : filaments short : anthers large, 

 oblong, rather obtuse. Fertile fl. Stamens none. Sepals ovate, acute, small. Ovary 

 oblong, longer than the calyx : styles somewhat plumose, varying from 3-5. Achenium 

 coriaceous, with as many angles as there are stigmas. Seed obovate, compressed, black. 

 Embryo horseshoe-form, but closed. 



Borders of salt-marshes, and along the Hudson as far as the water is brackish. Fl. August. 

 Fr. September. I have not found this plant in the interior of the State, but in Pennsylvania 

 and in the Western States it sometimes occurs in freshwater swamps. 



2. AcNiDA RusocARPA, MicJix. Rough-fruited Water-hemp. 



Fruit with the angles rather obtuse and corrugated. — Michx. fl. 2. p. 234. t. 50 ; Pursh, 

 fl.\. p. 208; Ell. sk. 2. p. 694 ; Moq.-Tand. Chenop. p. 79. A. rhyssocarpa, Spreng. 

 St/St. 3. p. 903.* 



Resembles the preceding in almost every respect except the fruit. This has the angles 

 thickened, and wrinkled or somewhat tuberculate. 



Borders of salt-marshes near New- York. August - September. It- is probable that this 

 plant is only a variety or particular state of A. cannabina. In Michaux's figure, the fruit is 

 not represented as rugose. 



Tribe III. SALICORNIEjE. C. A. Mey. 

 Flowers perfect, rarely polygamous, ivithout bracts, immersed in excavations of the rachis, 

 or concealed between its joints ; all similar in form. Seed vertical. Fruit an utriculus 

 or an achenium. Integument double or simple. Embryo conduplicate or semiannular. 

 ' — Stems mostly jointed. Leaves fleshy and very short, or none. 



7. SALICORNIA. Tourn. ; Moq.-Tand. Chenop. p. 113. glasswoRT. 



[ From the Latin, sal, salt, and cornu, a horn ; a saline plant, with horn-Uke branches.] 

 Flowers perfect (or by abortion polygamous), immersed in excavations of the rachis. Cal3'x 

 utriculate, toothed on the margin, at length spongy and furnished with a narrow winged 

 border. Stamens 1 or 2. Styles 2, united below. Utricle compressed, enclosed in the 

 calyx. Embryo annular, conduplicate. — Fleshy smooth herbs or undershrubs, jointed, 

 leafless or sometimes with very short leaves : branches opposite, terete ; the joints truncate 

 or 2-toothed ; terminal ones floriferous. Flowers minute, three together ; the lateral ones 

 sometimes sterile. 



♦ "A. rusocarpa, Gallice pronunciatur ; ruscocarpa, Willd., halhicinatione dicitur." Spreng. I.e. 



18* 



