salsolace^;. 53 



Stems leafy; leaves not terete; 



Fertile perianth 5-cleft or divided; 



Ovary superior Chenopodium 1 



" partly inferior B eta 2 



Fertile perianth of 2 bracts often more or less united At tciplex 3 



Stems leafy; leaves terete SuiEDA 5 



Stems leafless, terete Saucobnia I 



1. CHENOPODIUM, Tabernaemonlanus (Gooseeoot. Pro weeip). 

 Herbs with alternate petiolate mostly angular foliage. Flowers small, 

 greenish, sessile, clustered in axillary or terminal spikes or cymes, perfect, 

 or pistillate only, bractless. Perianth herbaceous, 3 — 5-parted; lobes 

 imbricate, often carinate or crested, persistent and more or less covering 

 the fruit, remaining green and herbaceous or becoming colored and 

 fleshy. Stamens 5 or fewer. Styles, 2, 3 or 4, slender. Pericarp 

 membranous, closely investing the lenticular horizontal or vertical seed. 

 Embryo annular or curved around a copious albumen. 



* Annual, more or less mealy, not pubescent; seed horizontal. 



1. C. album, L. Erect, stoutish, more or less paniculately branching, 

 1 — i ft. high; herbage pale green or whitish with a mealy indument: 

 leaves petiolate, ascending, rhombic-ovate, obtuse, acute or cuneate at 

 base, sinuate-dentate or subentire, 1 — 2 in. long, whiter beneath than 

 above : fl. densely clustered in close spikes, these forming a rather strict 

 leafless panicle: sepals of fruiting calyx carinate, completely covering 

 the fruit; seed smooth, shining, acutely margined. — A very common 

 weed of fields, gardens and waste places. June — Oct. 



2. 0. mueale, L. Stoutish and rather low, often with many 

 decumbent or ascending branches from the base; herbage dark green, 

 rather succulent, the growing parts very mealy: leaves petiolate, ascend- 

 ing, ovate-rhomboid, unequally and sharply toothed : fl. in rather dense 

 axillary nearly leafless cymes: fruiting calyx nearly closed, the sepals 

 slightly carinate: seed opaque, punctate-rugose, sharply margined. — A 

 common weed flourishing at all seasons. 



* * Herbage not mealy, glandular-pubescent and aromatic; seed 

 horizontal (except in a. 6.). 



3. C. Botkys, L. Annual, erect, often widely branching, 1—2 ft. 

 high, glandular-pubescent and highly aromatic: leaves ovate or oblong, 

 1 — 2 in. long, sinuate-pinnatifid, the lobes often toothed: fl. scattered in 

 very numerous slender axillary cymose panicles: sepals acute, loosely 

 investing the fruit: pericarp persistent: seed J 3 ' line broad, thick- 

 lenticular, black and shining. 



4 C. anthelmintiotjm, L. Perennial, stems stoutish, decumbent, 

 1 — 2 ft. long; herbage light green, glandular-puberulenl, pleasantly aro- 



