Part 1, 1916] CHENOPODIACEAE 89 
6.. Dondia Richii (Fernald) A. Heller, Muhlenbergia 6: 83. 1910. 
Suaeda Richii Fernald, Rhodora 9: 145. 1907. 
Green glabrous annual, the branches procumbent, forming mats 5 dm. or less in diameter; 
leaves linear or oblong-linear, obtuse or acutish, subcylindric, 8-15 mm. long, those of tHe 
inflorescence broader and only 4-5 mm. long; calyx deeply cleft, the lobes rounded on the 
back; seed 1.25-1.5 mm. broad, black. 
TYPE LOCALITY: Wells, Maine. 
Distrreution: Salt marshes along the coast, Nova Scotia to Massachusetts. 
7. Dondia americana (Pers.) Britton; Britt. & Brown, Ill. FL. 1: 
584. 1896. 
Salsola salsa Michx. Fl. Bor. Am. 1: 174. 1803. Not S. salsa ll. 1762. 
Salsola salsa americana Pers. Syn. Pl. 1: 296. 1805. 
Chenopodium salsum americanum R. & S. Syst. Veg. 6: 270. 1820. 
Suaeda americana Fernald, Rhodora 9: 146. 1907. 
Green glabrous annual, the branches procumbent, 2-3 dm. long, the flowering ones 
ascending; lower leaves linear, acute, about 2 cm. long, those of the inflorescence much broader 
and shorter; calyx deeply cleft, one or two of the sepals more strongly cucullate-carinate than 
the others; seed horizontal, 1-1.5 mm. broad. 
Type Locatity: Mouth of the St. Lawrence River. 
DISTRIBUTION: Salt marshes along the coast, Nova Scotia to Maine. 
8. Dondia linearis (Ell.) A. Heller, Cat. N. Am. Pl. 3. 1898. 
Chenopodium maritimum Pursh, Fl. Am. Sept. 198. 1814. Not C. maritimum lL. 1753. 
Salsola linearis Ell. Bot. S. C. & Ga. 1: 332. 1821. 
Suaeda linearis Moq. Chenop. Enum. 130. 1840. 
Suaeda maritima Torr. Fl. N. Y. 2: 141. 1843. Not S. maritima Dumort. 1827. 
Chenopodina maritima erecta Mog. in DC. Prodr. 13?: 161, in part. 1849, 
Chenopodina linearis Mogq. in DC. Prodr. 13?: 164. 1849. 
Chenopodina maritima A, Gray, Man. ed. 2. 366. 1856, Not C. maritima Moq. 1849. 
Suaeda linearis ramosa S. Wats. Proc. Am. Acad. 9: 87, in part. 1874. 
Dondia americana Britton; Britt. & Brown, Ill. Fl. 1: 584, as to description and illustration. 1896. 
Dondia carinata Millsp. Field Columb. Mus. Pubi. Bot. 2: 297. 1909. 
Erect annual, or the plants sometimes persisting in warm regions, 2-9 dm. high, green, 
glabrous, much branched, the branches ascending or spreading; leaves linear, narrowed at 
the base, acute or obtuse, the lower ones 2-5 cm. long, those of the inflorescence shorter; 
inflorescence paniculate, much branched, the spikes slender, densely flowered, the flowers 
several or numerous in each axil; calyx 2 mm. broad, deeply cleft, the lobes obtuse, all equally 
cucullate-carinate; seed 1—-1.5 mm. broad, black and shining, horizontal. 
TypxH LOCALITY: Seashores of South Carolina and Georgia. . 
DistrrBution: In sand or about salt marshes along the coast, Maine to Texas; Bahamas 
and Cuba. 
In.ustRarions: Britt. & Brown, Ill. Fl. f. 1393 (as D. americana); ed. 2. f. 1710. 
9. Dondia mexicana Standley, sp. nov. 
Erect green annual, stout, branched, the branches ascending or nearly erect; leaves 
numerous but not crowded, linear, the lower ones 1.2—2.5 cm. long, 1.2 mum. wide, acuminate 
or attenuate, thése of the inflorescence shorter; inflorescence paniculately branched, the 
branches erect, the flowers crowded in the axils and forming spikes 4-5 mm, thick; calyx deeply 
cleft, the lobes rounded, becoming enlarged and strongly cucullate in age, the fruiting calyx 
3 mm. broad; stamens exserted; seed 0.8 mm. in diameter, horizontal, dark brownish-red, 
shining. 
Type collected on alkaline plains, Hacienda de Angostura, State of San Luis Potosi, Mexico, 
July 15, 1891, C. G. Pringle 3788 (U. S. Nat. Herb. no. 48314). 
DISTRIBUTION: Western ‘Texas to San Luis Potosi. 
10. Dondia nigra (Raf.) Standley. 
Chenopodium maritimum Torr. Ann. oS Be ae 2: 239. 1828. Not C. maritimum lL. 1753. 
Raf, Atl. Jour. 
ee es wae Bot. Tene? s Expl. 294. 1871. Not S. maritima Dumort. 1827. 
Suaeda diffusa S. Wats. Proc. Am. Acad. 9: 88. 1874. 
Dondia diffusa A. Heller, Cat. N. Am. Pl. 3. 1898. 
