6. Arenaria Le Sandwort. 
Low, usually tufted herbs; leaves oval or narrowly linear, sessile. 
Flowers in terminal few-flowered cymes or solitary. Sepals 5, commonly 
oblong-lanceolate,susually with scarious margins. Fetals 5, entire or 
notched at the apex. rarely wanting, often shorter than the sepals. Stamens 
10. Styles 5-5. Capsule little exserted, in general ovoid, splitting into 
o, 5 or 6 valves; seeds reniform. 
OQ leaves ovate, oval or narrowly elliptical 
@ Leaves oval or narrowly elliptical, 1-4 cm. long, 
65-10 mn. wide flowers commonly 3-5 
4 Stems obtusely angled; seyals acuminate 
= 
A. macrophylla 
4 Stems terete; sevals obtuse . Ae lateriflora 
{Wo 
?, Leaves ovate, 4-5 mie lone; flowers numerous 3. As serpyllifolia 
© Leaves linear to filiform, rarely 2 mm, wide 
Z,Flants 5-12 cm. tall 
4 Sepals ovate, l-veined 4. Ae Rossii 
4 Sepals lanceolate or oblong, 3-veined 
G Densely tufted, mosslike, the leaves fas- 
Sian flowers solitary, retals 
somewhat longer than the sepals S Ae obtusiloba 
6 tufted, but rather loosely, the leaves 
crowded below, but not fascicleds 
i petals 2/3 the length of the sepals 
§ Stems hirtellous and somewhat glandular 
12 above$ veins of sepals equally 
prominent 6. Ae verna 
$4 Stems glabrouss midvein of sepals more 
/2Zprominent than lateral pair 7 Ase pusilla 
2, Fiants 10-25 cm. tall 
4 Flowers in dense spherical glomerules 8. 4. congesta 
4 Flowers in open cymes 4, Ae capillaris | 
i. Ae macrorhylia. fioo:. Low, decumbent, leafy herts; stems obtusely 
angled, channelled, 10-15 cm. tall, from slender creering rootstocks, puber- 
ulent, tne internodes usually shorter than the leaves: leaves narrowly oblonges 
lanceolate, 2-4 cm. lon _, 6-68 mn. wide, acute at both ends, glabrous; flowers 
d 
seo in terminal cymes litile exceedin: the leaves; redicels 1.5-£ om. long, 
1) 
= 
bracts © tie lon, scaricus; sepals 4-5 m. long, ovate, acuminate, the margins 
vhin tut nardiy scarious; -etals and stamens barely exserted; caysule ovoid, 
jeu: Oo, about equsl to the calyx, otlon subacute, curling; seeds 1.5 mm. 
? - e > 3 > OF 
ion snirorrz 1a ] 
S . 
wie aes oie ei ate See ee es Ce eee | : ee ee a wae ee 
acic anu - listenin. , minutely roushened, with a small appendace 
