GOOSEFOOT FAMILY • 50 



(a) One or more of the valve? with a swell- 



ing on the midvein 

 x. Edge of the valve? fringe-toothed 

 (x) One of the valves warted ; lower 



leaves heart-shaped at base R. obtusifolius 



iv) All the valves warted; lower leave- 

 tapering at base R. persicaris 

 v. Edge of valves entire, not fringe- 

 toothed 



All three valves warted 

 m. Leaves curly at edge R. crisp us 



n. Leaves flat, not curly at edge R. brittdnica 



i y i One valve only warted 

 m. Pedicels about the length of the 



valves R. altissimus 



n. Pedicels 2-4 times as long as the 



valves R. patientia 



(b) All valves without warts, the edge often. 



toothed R. occidentals 



CHEXOPODIACEAE GOOSEFOOT FAMILY 



Sepals 2-5, united, sometimes none, rarely 1, petals none, stamens 2-5, 

 rarely 1, ovary 1 -celled, styles 1-3, fruit a 1-seeded utricle; flowers small, 

 jgreen or greenish, rarely colored, perfect, monoecious ~or dioecious, usually 

 in dense clusters ; annual or perennial herbs, rarely shrubs, with alternate 

 rarely opposite simple entire to lobed often fleshy leaves. 

 1. Leaves present; stem not jointed 



a. Leaves fleshy, linear, terete or nearly so, en- 



tire 

 (1) Shrub; flowers monoecious; fruit winged Sarcobatus 

 Herbs ; flowers perfect 



fa) Fruit winged; leaves spiny-tipped Salsola 



(b) Fruit wingless; leaves not spiny 

 x. Calyx white-hairy Kochia 



y. Calyx smooth, greenish Dondia 



b. Leaves hardly fleshy, flat, toothed or entire 



I 1 ) Flowers or most of them with both sta- 

 mens and pistils 



(a) Fruit horizontally winged CyclolO-Ma 



(b) Fruit not winged 



