370 CHENOPODIACEAE (GOOSEFOOT FAMILY^ 



Seed vertical or horizontal, with a flat-spiral embryo, dividing the scanty albu- 

 men (when there is any) into two portions. — Fleshy saline plants, with alternate 

 nearly terete linear leaves. (An Arabic name.) Dondia Adans. 



Leaves linear or slender-cylindric, not broadened at base ; plant3>3f Atlantic coast. 



Seed 2 mm. broiul . 1. <S. marittma. 



Seed l.'2-l..'i mm. broad. 



Sepals i-biinded (not carinate) on the back 2. S. MicMi. 



Sepals (or some of them) carinate on the back. 



1 or li sepals more cucullate-carinate than the others . . . , Z. S. americanii . 



Sepals equally carinate i. S. Unearin. 



Leaves strongly dilated at base; plants of western plains .... 5. S. depressa. 



1. S. marftima (L.) Dumort. Comparatively low, 0.o-4 (rarely 5 or 6) dm. 

 high, ascending or depressed, subsimple or with spreading-ascending or decumbent 

 ^ubsimple branches, or even forming depressed mats ; leaves usually glaucous, 

 acutish, semicylindric (flat above, convex beneath), 5 cm. or less Imig ; those of 

 the flowering branches sliorter, and much exceeding the 1-4 axillary flowei-s ; 

 sepals pale green, rounded or obscurely keeled on the back ; seed red-brown or 

 black. (Dondia Druce.) — Common on salt marshes, e. Que. to Ct., and ocGa- 

 sionally southw. to La. Fr., June-Sept. (Eu.) 



2. S. RIchii Fernald. Stems procamfteiif, forming mats 5 dm. or less across 

 (sometimes fruiting when 1 cm. long); leaves dark green, not glaucous, subcylin- 

 dric, dorsally compressed, obtuse, the lower 1.5 cm. or less in length ; those of 

 the flowering branches broader and shorter (4-5 mm. long) ; seed black. — 

 Salt marshes and wet sand, coast of N. S. and Me. Fr., July-Sept. 



3. S. americina (Pers.) Fernald. Stems procumbent, the branches 2 or 3 

 dm. long, only the abundant densely flowered spiciform ultimate branches as- 

 cending ; leaves linear, thickish (flat above), acute, the lower about 2 cm. long, 

 those subtending the crowded flowers broader and shorter ; sepals very irreg- 

 ular, 1 or 2 strongly keeled. (Salsola salsa, var. Pers.) — Salt marshes, lower 

 St. Lawrence R. to s. Me. Fr., late Sept. -Nov. — Mature plant purplish through- 

 out. 



4. S. linearis (Ell.) Moq. Erect or ascending, 2-9 dm. high, profusely 

 branched; the slender branches ascending or wide-spread, not procumbent; 

 leaves narrowly linear, acute, deep green, not glaucous, the lower 4 cm. or less 

 long, the upper similar but shorter ; sepals equally carinate. (Dondia americana 

 Britton, not Salsola salsa, var. americana Pers.) — Sandy coast, Me. to Tex. 

 Fr., Sept.-Nov. 



5. S. deprfissa (Pursh) Wats. Decumbent or erect, branching from the 

 base ; leaves broadest at base, the cauline 1-4 cm. long, the floral lanceolate to 

 ovate ; one or more of the calyx-lobes very strongly carinate or crested. (Don- 

 dia Britton.) — Saline soil, Man. and w. Minn, to Neb., and westw. across the 

 plains. 



10. SAlSOLA L. Saltwort 



Flowers perfect, with 2 bractlets. Calyx 5-parted, its divisions at length 

 horizontally winged on the back, the wings forming a broad scarious border. 

 Stamens mostly 5. Styles 2. Seed horizontal, without albumen. — Herbs or 

 slightly shrubby branching plants with fleshy and rather terete or awl-shaped 

 leaves and sessile axillary flowers. (Diminutive of salsus, salty, alluding to the 

 saline habitat of most of the species.) 



1. S. Kslli L. (Co-\iMON S.) Annual, difiusely branching, bushy, pubes- 

 cent (rarely glabrous) ; leaves all alternate, awl-shaped, stiffish, prickly-pointed; 

 flowers single ; calyx with converging lobes forming a sort of beak over the fruit, 

 the yellowish to lead-colored wings nearly orbicular and spreading. — Sandy 

 sea-shore, Nfd. to Ga., and saline places inland. Aug. (Eu.) Var. caholin- 

 ii.NA (Walt.) Nutt. Glabrous throughout (rarely pubescent); the wings 

 larger, roseate. — Similar range. (Eu.) 



Var. TENniF6LiA G. F. W. Mey. (Russian Thistle.) Erect or ascending, 

 very bushy ; leaves especially on the young and vesetative stems longer (8-7 cm. 



