MACLOSKIE : CHENOPODIACE.-E. 357 



c. Glomerules sessile and with a terminal spike. Seeds pitted. Stem prostrate. 



antarcticum. 

 C2. Racemes densely flowered, leafless. Stem stout, fleshy. Seeds large, reticulate. 



macrospermum. 



c$. Glomerules simple or compound or spicate. Stem angular. Fruiting calyx incom- 

 pletely closed. Seeds margined and pitted. rubrum. 

 A$. Low or depauperate. 



b. Leaves ovoid to trapezoid. Glomerules short. Seeds rounded. patagonicum. 



b2. Leaves minute, fleshy, 7 mm. long. camosulum. 



3. Leaves several-toothed on each side, mealy. Plant erect hircinum. 



A6. Perianth enclosing the fruit, afterwards stellately spreading. Leaves small, hastate, 3-lobed 



scabricaule. 



A 1 /. Perianth spreading in fruit. Leaves green, 3-nerved, 3-lobed. ameghinoi. 



AS. Perianth closed in fruit. Annuals. 

 b. Paniculate. 



c. Leaves deltoid, the lower hastate, 3-lobed. ficifolium. 



C2. Leaves rhombic -ovate, at length purplish, the lower auricled. purpurascens. 



b2. Subcorymbose. Leaves ovate-rhombic, sharply-toothed, glabrous. tnurale. 



i. CHENOPODIUM ALBUM Moq. 



Polymorphous, white to greenish. Stem herbaceous, erect, sulcate- 

 striate, subramose. Leaves petiolate, ascending, rhombic-ovate, basi- 

 cuneate, obtuse or acute, sinuate-dentate, sometimes subentire, slender, 

 puberulent ; the upper oblong, lance-linear, entire. Racemes paniculate, 

 subspicate, dense or lax, nearly leafless. Fruiting calyx closed, carinate. 

 Seed acute-margined, shining. 



(Europe and N. Africa; Asia; Mex. and Cuba; Argentina); Patagon. 



2. C. AMBROSIOIDES Linn. (Spachm. sub Ambrina.} 



Pubescence glandular-aromatic, not farinose. Stem herbaceous, erect, 

 sulcate, branching. Leaves subpetiolate, oblong, attenuate basewards, 

 acutish, sinuate-dentate or subentire, puberulous, glandular-green under- 

 neath; the uppermost lance-linear, entire. Racemes glomerate-spicate, 

 dense-flowered, leafy. Fruiting calyx closed, without a carina, with 

 curious glands. Seeds obtuse, margined, shining. 



(Fig. in Eng. & Prantl, iii, la, p. 58, K-Q.) (Cosmopolitan); in W. 

 Patagon. and N. Patagon. 



3. C. AMEGHINOI Speg. 



(Botryois, odontophyllum.) Erect, fastigiately branching annual. Stem 

 herbaceous, striate, glabrous. Leaves with slender, long petioles, ascend- 



