336 CHENOPODIACE^E. [Chenopodium. 



B. SPIROLOBE/E. Embryo spiral. 



Tribe IV. SUiEDEiE. Stem leafy. Sepals 4-5, not winged at the 

 back 5. Suseda. 



Tribe V. SALSOLEiE. Stem leafy. Sepals 4-5, transversely winged in 

 fruit 6. Salsola. 



1. CHENOPODIUM, Tournef. Goose-foot. 



Erect or prostrate, very variable herbs, usually littoral or on made soil. 

 Stem angled, often striped white or red and green. Leaves entire lobed or 

 toothed. Flowers minute, 2-sexual, ebracteolate ; clusters axillary, or 

 in simple or panicled cymes. Sepals 3-5. Stamens 2-5, perigynous, 

 filaments subulate. Disk 0. Ovary free, depressed or compressed ; styles 

 2-3. Utricle membranous, often enclosed by the calyx. Seed horizontal 

 or vertical, testa crustaceous, albumen floury ; embryo annular. — Disteib. 

 All climates ; species about 50. — Etym. -/r\v an d iruvs, goose-foot. 



Section 1. Annual. Flowers 5-merous. Styles short. Seeds horizontal. 



* Leaves quite entire. 



1. C. Vulva'ria, L. ; mealy, diffuse, leaves deltoid-ovate, sepals not 

 keeled covering the utricle. C. ol'idum, Curtis. 



Roadsides and waste places, Edinburgh, and from Northumbd. southd. ; S. and 

 E. Ireland (? extinct) ; Channel Islands ; fl. Aug.-Oct. — Annual, foetid. 

 Branches 6-18 in., opposite, divaricate. Leaves |-1 in., greasy to the touch, 

 acute, grey-greeu ; petiole as long or shorter. Spikes small, f-4 in., dense, 

 axillary and terminal. Seeds black, punctulate. — Distrib. From Denmark 

 southd., N. Africa. — Odour of stale salt fish. 



2. C. polysper'mum, L. ; glabrous, erect or ascending, leaves ovate, 

 sepals not keeled shorter than the utricle. C. acutifo'lium, Sm. 

 Cultivated ground, manure-heaps, &c, from Berwick southd. ; Channel 



Islands ; fl. Aug.-Oct. — Annual. Stem 6-18 in. ; branches many, spreading, 

 leafy. Leaves §-l§ in., shortly petioled, membranous, obtuse or acute. 

 Cymes |-1 in., axillary and terminal, simple or panicled ; branches very 

 slender, spreading ; flowers very minute. Seeds minute, dark brown, rough. 

 — Distrib. Europe, N. Asia ; introd. in N. America. 



** Leaves more or less toothed or lobed. 



3. C. album, L. ; erect, mealy, leaves rhombic or deltoid-ovate sub- 

 entire or irregularly toothed, upper oblong entire, sepals keeled covering 

 the utricle narrowly scarious or all green, seed smooth keeled. 



Waste, especially cultivated ground, N". to Shetland ; ascends to 1,000 ft. in 

 Yorkshire ; Ireland ; Channel Islands ; fl. July-Sept. — Very variable. Stem 

 1-3 ft. ; branches erect or ascending. Leaves 1-3 in., tip acute obtuse or 

 rounded, base cuneate often 3-nerved ; petiole usually long and slender. 

 Spikes terminal and axillary, simple or panicled, leafy below. Seed almost 

 black, hardly dotted. — Distrib. Europe (Arctic), temp. Asia ; introd. in 

 N. America. 



