158 XCVI. CHENOPODIACEJE. | Chenopodium. 
Bonus-hen nricus to Blitum, a most T combination, and leaves C. glaucum and 
C. rubrum, in which the seeds of some of the flowers are often erect, ambiguous bettie 
the two genera. I have ete followed F. Mueller in reuniting them, at least as to — 
= recipe — and the very variable consistence of the fruiting perianth in €. 
rinatum a didit it very doubtful whether even ai Linnean Blita, with — 
odiu 
their beri tke fruits, can i be distinctly scyeriited from Chenopo 
Secr 1. Rhagodioides.—Spinescent shrub. Flower-clusters in terminal spikes. 
Seeds vertical. 
Plant É or mealy-white. Leaves entire . . . eoe 1. C nitrariacea. 
SzcT. 2. Chenopodiastrum.— Herbs mealy-white or glabrous. — Flower-clusters in 
bebe. or "oy spikes or panicles. Seeds all or or mostly horizontal. 
Erect = ehe or almost glabrous. Spikes terminal, often 
pan 
Leaves quie very hoary or white) entire or nen dr hastate 2. C. auricomum. 
ves ( 
green or mealy-white underneath or on both sides es) at 
het e lower ones coarsely sinuate- tooth d 2.779. C album 
Erect green annual. Cymes or panicles vea and loose. 
Leaves broad, coarsely-toothed . “i sta wi vul Comi 
Decumbent or prostrate herbs (mostly annual). 
Leaves entire or hastate. Stamen ually 
ak and elongated. pedi es zd or sasroely mealy. 
w rs in terminal interrupted spikes 5. C. triangulare. 
Stems short, ste seni Leaves small, meal A Flower- 
clusters small in the upper axils or scarcely spica 6. C. microphyllum. 
€ leaves inani. toothed mo most] y eus "en white under- 
. Stamen usu . 7. C. glaucum. 
Sect. 3. Botryois lay glandular aromatic herbs or undershrubs not medly. 
Biali è all or mostly horizonta l. 
Leaves narrow, mostly Nps tao ic atten en 
forming a leafy panicle 8. C. ambrosioides. 
Szcr. 4. Orthosporum.— bent glandular herbs mot mealy. Seeds all ver 
tical. Jive dee all PE a 
Perianth-segments broad, concave with a thickened keel 9. C. carinatum. 
Perianth-segments narrow, ne arly erect, with a thickened keel. 
Minute filiform plant 10. C. pumilio. 
Perianth-segments linear, erect, the keel dilated into a broad 
fringed wing or crest 11. C. eristatum. 
Perianth-segments lanceolate, erect, the keel much h thickened and 
angular at the bas . 12. C. atriplicinum. 
SEcT. 1. Rnaaonrorpzs, —Spinescent shrub. Flower-clusters in tef- 
minal E Seeds all vertical. 
l. C. nitrariacea, Muell. A rigid divaricately branched or 
prostrate pes or erbe hoary or mealy-white all over with à 
minute tomentum, the smaller branchlets often spinescent but n 
nearly so slender as in Rhagodia spinescens. Leaves alternate, sometimes | 
clustered at the base of the flowering bom gm linear oblong or Hae 
ted i short 
thulate, very obtuse, entire, contrac a short petiole, from 
= ud. = je DENS L lin.] o wers eso usually qu i 
MESE 
TONNERRE 
