DICOTYLEDONS. CHENOPODE/E. ChenopOllilim. 207 



*** Flowers dicccious ; valves grain less. (Acetosa.) 



10. R. Acelosa, leaves oblongo-sagittate their segments bent to- 

 wards the petiole, p. 1 13. Pastures. 



11. R. Acetosella, leaves lanceolato-hastate their acute lobes 

 spreading or even recurved, p. 113. -Dry pastures. 



3. OXYRIA. 



Perianth of 4 leaves, two inner ones longer. Slam. 6. Styles 

 2. Nut triquetrous, with a broad, winged, membranous mar- 

 gin. Embryo erect, inverted. 



1. O. reniformis. p. 1 ll a . Moist alpine rocks. 



ORDER XI. CHENOPODE.E, Decand. (AtripKces, 



Juss.) 



Perianth of 1 piece, free, persistent, mostly with deep divisions, 

 and with an imbricated aestivation. Slam, definite, opposite 

 the segments, into the base of which they are inserted. Style 

 2 4-cleft,or none. Stigmas simple. Achenlum or Utricu- 

 lus inclosed by the persistent perianth. Seeds erect. Embryo 

 curved round a farinaceous albumen, or spiral ; rarely without 

 albumen. Panicle inferior. 



Herbs or Shrubs. Leaves simple, alternate, without stipules. 

 Fluwers generally perfect. JBr. 



1. CHENOPODIUM. 



Flowers perfect. Perianth 5-cleft, closing upon but not wholly 

 enveloping the fruit. Stam. 5. Styles 2. 

 * Leaves semicylindrical, fleshy . 



\. C\\.maritimum } leaves glabrous subulate semicylindrical fleshy, 

 flowers clustered axillary sessile, p. S3. Sea- coast. 

 ** Leaves plane, undivided, and entire. 



2. Ch. olidum, leaves ovato- rhomboid entire, flowers in dense 

 clustered spikes, stem diffuse, p. S3. Waste places. 



3. Ch. poly spei "mum , leaves ovate entire, racemes subcymose 

 divaricate leafless, stem decumbent or erect, p. 83. Waste 

 places. 



*** Leaves plane, toothed, or lobed. 



4. Ch. Bo?ms Henricus, leaves triangular arrow-shaped entire, 

 spikes compound terminal and axillary erect leafless. p. S3. 



-sides. 



a By mistake, in the first part of this work, this species is said to be Donia 

 saplilu of Brown, instead of Z>. acitla. 



