176 
A TRIPLEX 
succulent. Inflorescence with axillary and terminal spikes; spikes about 10 cm. long, simple, partial 
inflorescences discrete. Fruiting bracteoles rhomboid-ovate, elongate, up to about 5 mm. long and 
3 broad, denticulate to entire, tuberculate, usually dark green and somewhat succulent. Seeds about 
2 mm. in diameter. 
Westerlund {Sver. Atripl. 44 (1861)) states that the bracteoles may become “an inch” long. 
A. hastata var. genuina is common in cultivated and waste ground. Hampshire, Surrey, Huntingdonshire, and 
doubtless elsewhere. 
(f3) var. genuina forma salina Moss and Wilmott in Moss Camb. Brit. FI. ii, 176; A. triangularis 
Willdenow Sp. PI. iv, 963 (1806); A. prostrata Babington Man. 252 (1843) partim non Boucher; A. hastata 
var. triangularis Moquin in DC. Prodr. xiii, pt. ii, 95 (1849) partim; Rouy FI. France xii, 33 (1910); A. hastata 
var. parvifolia Moquin toe. cit. partim; A. hastata var. depressa Hartmann Skand. Ft. ed. 5, 197 (1849); 
A. deltoidea var. triangularis Babington Man. ed. 3, 270 (1851); A. hastata subsp. deltoidea var. triangidaris 
Syme Eng. Bot. viii, 31 (1868); A. prostrata var. parvifolia Hartmann Skand. FI. ed. 11, 349 (1879); A. hastata 
var. microtheca forma salina Beck in Reichenbach Icon, xxiv, 1 3 1 (1908); A. hastata var. salina auct. pi., partim. 
Whole plant smaller, very mealy. Stem prostrate or decumbent. Laminae of the lower leaves 
triangular, small (2 — 3 cm. long), almost or quite entire, glaucous-looking owing to the abundance 
of the mealy hairs, rather succulent. Inflorescence subsimple, rather leafy at the base. Fruiting 
bracteoles often as in var. deltoidea , but sometimes rather more succulent and occasionally 
bituberculate. 
This grades into the common form of var. deltoidea through a series of intermediates : some of these states may be due 
to habitat -conditions ; and others appear to be the results of hybridisation and factorial segregation. 
Sea-shores, shingle-banks, and the seaward edge of sand-dunes. Somerset, Sussex, Kent, Essex, Norfolk, 
Yorkshire, and doubtless elsewhere. 
{b) A. hastata var. deltoidea Moquin in DC. Prodr. xiii, 2, 94 (1849); Rouy FI. France xii, 33 (1910); 
A. delto'idea Babington Prim. FI. Sam. 82 (1839) et alibi partim ; A. hastata var. macrotheca forma deltoidea 
Beck in Reichenbach Icon. FI. Germ. 130 (1908). 
leones : — Babington in Eng. Bot. Suppl. t. 2860, as A. deltoidea. 
Camb. Brit. FI. ii. Plate 179. (a) Fruiting branches. ( b ) Lower part of shoot. ( c ) Leaf from lower part 
of shoot. (d) Fruiting bracteoles (enlarged). Huntingdonshire (E. W. H.). Plate 180. (a) Upper portion of 
shoot, (b) Fruiting bracteoles (enlarged). (E. W. H.). 
Stem erect, much branched. Petioles ro — i^mm. long. Laminae of the lower leaves triangular, 
lobes short and triangular, margin denticulate to entire, usually rather thin, about 4 — 5 cm. long and 
3 — 4 broad ; of the upper leaves lanceolate, lobed or not. Inflorescence with compound terminal 
spikes ; partial inflorescences more or less discrete. Fruiting bracteoles triangular, cuneate at the 
base, margin often with 1 or 2 denticulations at the lateral angle, smooth, thin, flat, some of them 
only slightly exceeding the achene, others larger (3 — 4 mm. long and 2 — 3 broad). Seeds mostly 
small (ro — i'5 mm. in diameter). 
The fruiting bracteoles of this variety are very different from those of var. genuina ; but the range of variation is very 
great. Several forms are recognisable ; but we have not yet been able to investigate them sufficiently to determine their 
status. (1) The common form has dark green leaves, a more compound inflorescence, and stouter spikes. (2) Another form is 
common in the ditches of eastern England (e.g., eastern Huntingdonshire, Cambridgeshire, and Suffolk) : this has pale 
green leaves, often a rather simple inflorescence, and very slender and rather long spikes (Plate 179). (3) Under the 
influence of saline conditions, the plants become reduced in size and decumbent in habit. We have considered whether 
or not these saline forms are referable to A. prostrata ([Boucher ex] DC. FI. France iii, 387 (1805)); but so much 
hybridisation appears to be proceeding among the sea-shore forms that it is difficult to arrive at a decision. 
( c ) A. hastata var. microtheca Rafn Dann. FI. 239 (1800); A. microsperma [Waldstein et Kitaibel ex] 
Willdenow Sp. PI. iv, 964 (1806); Waldstein et Kitaibel PI. Rar. Hung, iii, 278, t. 250 (1812) non t. 221; 
Host FI. Austr. i, 320 (1827); Babington Man. 253 (1843); Monogr. Brit. Atripl. in Trans. Bot. Edinb. i, 11 
(1844); A. ruderalis Wallroth Sclied. Crit. 115 (1822); A. latifolia var. microcarpa Meyer Chlor. Hanov. 468 
(1836); Koch Syn. ed. 2, 702 (1844); A. patula var. microsperma Moquin Chen. Enum. 54 (1840) including var. 
oppositifolia partim; A. hastata var. microsperma Moquin in DC. Prodr. xiii, pt. ii, 95 (1849); Rouy FI. France 
xii, 34 (1910). 
Stem erect ; branches stiff and rigid, lower ones ascending from a short decumbent base, upper 
ones ascending. Leaves mostly opposite. Laminae of the lower leaves triangular, denticulate or 
subdenticulate, rather rigid ; of the upper leaves hastate or lanceolate. Inflorescence of numerous 
rather short, densely arranged spikes ; partial inflorescences dense, almost or quite confluent. 
Fruiting bracteoles ovate, entire, usually small, about 3 mm. long and 3 broad, rarely larger and 
