MACLOSKIE: CHENOPODIACE^E. 361 



15. CHENOPODIUM RUBRUM Linn. (Reichb. sub Blituni}. 



Stem angular, branching. Leaves alternate, petioled, deltoid or del- 

 toid-ovate, cuneate, obtuse, sinuate to dentate, thickish, shining, glaucous- 

 green to reddish. Glomerules simple or compound, the upper spiked. 

 Fruiting calyx incompletely closed, herbaceous or pitted. Seed obtuse, 

 margined, pitted. 



(Eurasia; Azores; also cult.); through Patagon., E. Fuegia. (Dusen.) 



1 6. C. SCABRICAULE Speg. 



(Chenopodiastrum.} Annual, low or minute, somewhat smooth-seeded, 

 at first somewhat papulose-farinose, afterwards glabrate, green, rather 

 erect; branches pallid-green, terete to angular, more or less callous- 

 papillose, laxly or divaricately branching. Leaves small, membranaceous 

 or thickish, conspicuously hastate-trilobed, all the lobes elongate, acute. 

 Flowers in racemes. Calyx-segments green, slender, obtuse, retuse, not 

 carinate, at first enclosing the fruit, afterwards more or less stellate-patent. 

 Seeds lenticular, acutely carinate-margined, very finely reticulate, black 

 and shining. 



Rather rare along Rio Chubut, and Rio Chico (also in Mendoza Andes). 



Has different forms viz. : 



(a] pusillum, 20-50 mm. high ; leaves cruciately and acutely 3-lobed, 

 fruiting calyx small. By Rio Chubut. 



(b] megalospermum, 10-15 cm - high; leaves obtusely hastate-subtri- 

 lobed, fruiting calyx rather broad. By Rio Sta. Cruz. 



(c}-robustnm, stout, 15-20 cm. high; leaves thickish, acutely hastate, 

 trilobate, fruiting calyx mediocre. 



17. C. VULVARIUM Linn. 



Annual. Stem 30 cm. high, branching, striate. Leaves alternate, 

 petioled, rhombic-ovate, 3 cm. long, entire, pulverulent-hoary. Racemes 

 leafless, dense, spike-like. Fruiting calyx closed, without keel. Seed 

 acutely margined, finely pitted, shining. Odor offensive. 



(Eur. and N. Afr.) ; E. Fuegia. (Dusen.) 



4. ROUBIEVA Moq. Tand. 



Flowers mostly hermaphrodite, bractless. Calyx urceolate, 5-cleft, the 

 lobes not appendaged, at length coalescing, as a pentagonal capsule. 



