CHENOPODIUM 
159 
Distribution as in var. virescens. 
Europe; North America (naturalised). 
id) *C. album var. leptophyllum 1 Moquin in DC. Prodr. xiii, pt. ii, 71 (1849). 
Stem 2 — 7 dm. high. Petioles short. Laminae linear to narrowly oblong-lanceolate, entire, 
about 1 '5 — 2 '5 cm. long. Perianth-segments strongly keeled. Seeds rather smaller than in the 
preceding varieties. 
Waste places, local ; Sussex, Hertfordshire, and northwards to Aberdeenshire. 
Europe (not indigenous) ; North America. 
C. album var. integerrimum X var. spicatum comb. nov. ; C. album var. viride Swartz Svensk 
Bot. no. 41 1 (1809); Wahlenberg FI. Suec. 158 (1826). 
leones: — Svensk Bot. t. 41 1, as C. album var. viride ; Ft. Dan. t. 1150, as C. viride. 
Laminae of the lower leaves triangular to rhomboidal, margin more or less dentate ; of the 
upper leaves lanceolate, entire to subentire. 
Plants which we refer to this hybrid are not uncommon. Owing, however, to the close affinity of the putative 
parents, and to the small size and inconspicuous nature of the flowers, the plants appear merely as intermediate leaf-varieties. 
Cambridgeshire, and doubtless elsewhere. 
C. album is very abundant in waste places, cultivated land, and road-sides throughout the 
British Isles, more especially in lowland localities. 
Faeroes, Iceland, Scandinavia, Denmark, Germany, Holland, Belgium, France, central Europe 
(ascending to 2300m. in Switzerland), Russia, southern Europe; northern Africa; Asia; America; 
Australia. 
Series iii. Urbica 
Urbica nobis. For characters see page 155. 
British species of Urbica 
5. *C. opulifolium (see below). Laminae of the lower leaves not hastate, nearly as broad 
as long, apex obtuse. 
6. C. ficifolium (p. 160). Laminae of the lower leaves hastate, basal lobes prominent, 
central lobe oblong, apex obtuse. 
7. C. murale (p. 161). Laminae of the lower leaves often nearly as broad as long, not 
hastate, very coarsely and irregularly toothed, teeth acute, apex acute or obtuse. 
8. C. urbicum (p. 161). Laminae of the lower leaves subtriangular, not hastate, usually 
more or less toothed, apex acute. 
9. C. hybridum (p. 162). Laminae of the lower leaves cordate, not hastate, marginal 
teeth few and large, apex acuminate. 
5. *CHENOPODIUM OPULIFOLIUM. Plate 160 
Blitum folio subrotundo Dillenius in Ray Syn. ed. 3, 155 (1724). 
Chenopodium opulifolium [Schrader ex] Koch et Ziz Cat. PI. Palat. 6 (1814); DC. FI. France v 
[on vi], 372 (1815); Rouy FI. France xii, 43 (1910); C. viride L. Sp. PI. 219 (1753) pro minima parte (id est, 
syn. Vaillanti) ; C. sei'Otinum L. Cent. PI. ii, 12 (1756); Syst. Nat. ed. 10, 948 (1759) excl. syn. Raii ; C. album 
var. rotundifolium Gray Nat. Arr. ii, 284 (1821); C. album var. opulifolium G. F. W. Meyer Chlor. Hanov. 465 
(1836). 
leones: — Beck in Reichenbach Icon, xxiv, t. 239. 
Camb. Brit. FI. ii. Plate 160. (a) Flowering shoot. ( b ) Lower leaves. ( c ) Seed (enlarged). Herefordshire 
(S. H. B.). 
Exsiccata : — Billot, 2526; Fries, xiv, 62; Reichenbach, 659; Todaro, 1027 (a small-leaved form); Wel- 
witsch, 86; Wirtgen, vi, 251; vii, 296. 
1 The citation C. leptophyllum Nuttall ex Moquin loc. cit., frequently seen in systematic works, is inadmissible, as the 
name is only cited by Moquin in synonymy. 
