A RENA RI A 41 
1 
More robust than the other varieties. Sepals with the veins stronger and more elevated. 
Petals nearly as long as the sepals. Capsules larger. Seeds about o - 5 mm. long. 
Local, near the sea, chiefly on sand-dunes more rarely on rocks and walls ; known from the Channel Isles 
northwards to Lancashire, the Isle of Man, and Norfolk; Scotland — Forfarshire; Ireland — co. Wexford. 
Northern and western France, and probably elsewhere. 
(b) A. serpyllifolia var. sphaerocarpa Syme Eng. Bot. ii, 102 (1864); A. sphaerocarpa Tenore Relaz. del 
Viagg. di A bruzzo in Atti Acad. Pontan. i, 212 (1829); Syll. 219 (1831); Gussone Syn. FI. Sicul. i, 495 (1842); 
A. serpyllifolia Gussone op. cit., Add. p. 824 (1843); Godron FI. Lorr. ed. 2, i, 122 (1857); Babington FI. Cambr. 
303 (i860). 
leones: — Eng. Bot. t. 923, as A. serpyllifolia ; Curtis FI. Lond. i, t. 87, as A. serpyllifolia ; FI. Dan. t. 9 77, 
as A. serpyllifolia ; Reichenbach Icon. t. 216, fig. 4941 (two lower figures), as A. serpyllifolia ; Wilkomm Icon, et 
Descr. i, t. 63 C, as A. serpyllifolia. 
Exsiccata : — Linn, herb., as Arenaria serpyllifolia ; Billot, 1138, as Ar. serpyllifolia ; Dickson, xvi, 3, as Ar. 
serpyllifolia ; Fries, xvi, 46, as Ar. serpyllifolia. 
Sepals broader than in var. tenuior. Capsule broader than in var. tenuior. 
Commoner in this country than var. macrocarpa or var. tenuior , and the usual plant of cornfields and waste 
places, but also occurring on walls. 
Distribution of the species. Adventitious in North America. 
( c ) A. serpyllifolia var. tenuior Mertens und Koch Deutschl. FI. ed. 3, iii, 266 (1831); Babington Manual 
ed. 4, 52 (1856); A. serpyllifolia Tenore Syll. FI. Neap. 219 (1831); A. serpyllifolia var. genuina Godron FI. 
Lorr. 103 (1843) non a l-J di. leptoclados Gussone FI. Sicul. Syn. ii, 824 (1843); Godron FI. Lorr. ed. 2, i, 123 
(1857); Lloyd FI. Ouest. Fr. 77 (1854); Boreau FI. Centr. Fr. ed. 3, ii, 109 (1857); A. serpyllifolia var. lepto- 
clados Reichenbach Icon, v, 32 (1841); Syme Eng. Bot. ii, 102 (1864); Corbiere FI. Normand. 103 (1893); A. 
serpyllifolia subsp. leptoclados Rouy et Foucaud FI. France iii, 242 (1896). 
leones: — Babington in Eng. Bot. Suppl. t. 2972, as Ar. leptoclados ; Reichenbach Icon, v, t. 216, fig. 4941 /3, 
as Ar. serpyllifolia var. leptoclados. 
Camb. Brit. FI. iii. Plate po. {f) Flowering shoot. ( g ) Inflorescence. (?) Flower (seen from below) (en- 
larged). (/) Flower (seen from above) (enlarged). Somerset (E. W. H.). 
Exsiccata: — Billot, 1139, as Ar. leptoclados ; v. Heurck, i, 1, as Ar. leptoclados ; Todaro, 412, as Ar. lepto- 
clados. 
More slender than the other varieties. Sepals lanceolate, acuminate. Capsules narrow. 
Distribution of the species. North America (adventitious). 
Dry places ; on sand-dunes, sandy heaths, rocks, walls, and in cultivated land ; throughout 
almost the whole of the British Isles ; ascending to 600 m. 
Scandinavia (to 69° N.), Denmark, Germany, Holland, Belgium, France, central Europe 
(ascending to 2500m.), Russia, southern Europe; Africa; Asia (eastwards to Japan); America 
(not indigenous). 
Section 2. MOEHRINGIA 
Moehringia [L. Gen. PI. ed. 2, 167 (1742);] Sp. PI. 359 (1753) et Gen. PI. ed. 5, 170 (1754) as a genus; 
Bentham and Hooker Gen. PI. i, 150 (1862) as a section; Pax op. cit. p. 84, as a genus. 
For character, see page 38. Only British species: — Ar. trinervia. 
5. ARENARIA TRINERVIA. Plate 41 
Alsine plantaginis folio J. Bauhin Hist. PI. iii, 363 (1651); Ray App. Cat. Cantab, ed. 2, 2 (1685); Syn. 
ed. 3. 349 (1724)- 
Arenaria trinervia L. Sp. PI. 423 (1753)!; Smith FI. Brit. 478 (1800)!; Syme Eng. Bot. ii, 101 (1864); 
Alsine trinervia Crantz Inst, ii, 406 (1766); Moehringia trinervia Clairville Man. d' Herb. 150 (1811); Rouy FI. 
France iii, 255 (1896). 
leones: — Smith Eng. Bot. t. 1483; Curtis FI. Lond. ii, 86; FI. Dan. t. 429; Reichenbach Icon, v, t. 216, 
fig. 4943, as Moehringia trinervia. 
Camb. Brit. FI. iii. Plate pi. ( a ) Flowering shoot. ( b ) Sepals (enlarged). ( c ) Seeds (enlarged). Surrey 
(E. W. H.). ( d ) Flowering shoots. ( e ) Leaves. (/) Sepals (enlarged), (g) Ovary (enlarged). ( h ) Seeds 
(enlarged). Jersey (E. W. H.). 
Exsiccata: — Billot, 1834, as Moehringia trinervia ; Don, 137; Herb. FI. Ingric. i, 116, as M. trinervia. 
6 
M. III. 
