8.Cerastium Le Yowder Horne 
Low, rather diffuse herbs with flat, usually hairy leaves, Flowers 
in terminal dichotomous cymes. Sepals 5, thin and subscarious. Petals 5, 
commonly 2-lobed or &-cleft, frequently wanting in some flowers on the same 
plant. Stamens 10. Styles usually 5, opposite the sepals. Capsule 1-cham- 
pered, cylindric, often curved, membranous, drying straw-color and shining, 
dehiscing at the summit by 8 or 10 teeth. Seeds roughened. 
OPetals half again or twice}. long as the calyx, 
j 2 Leaves oblony or oblanceolate; petals 10-12 
(> tm. long I Ge Leibergii 
Leaves linear; petals 7-8 mm. long 2. Ge. strictum 
© Petals hardly exserted or wantingg—t7 
4 Yedicels 5-12 moe long 3. Ce Vulgatun : 
— j 
4 Pedicels 1-5 cm. long or more 4, So nutans | 
le Ce Leibergii Rydb. Stems 30-40 cm. tall, tne upper internodes 
w 5-10 cme long, pubescent and more or less glanaular throughout; pubescence 
retrorse in lower parts; leaves 2-3 cme long, O-10 mn. wide, oblong-lanceo- 
late, the mid-vein prominent beneath, acute at the apex, sessile, both 
surraces ¢landular-pvubescent; cymes 10-25 cm. long, the bracts 5-8 mm. long, 
, thin; calyx-lobes lanceolate, glandular, 6 mm. long, the margins scarious} 
' petals 10-12 mm. long, white, deeply notched; stamens and style half the 
length of the petals; capsule 8-10 mm. long, lightly curved upwards; seeds 
1 mn. in diameter, brown, muriculate. 
pcan 
Occasional in meadows at lower elevations. 7 
$200f T- 
not ——>eadow near Pierce, Spling; Upper Ste liarigs ite G6 nb Leiberg 1103; 
—>Uvper Ferry, Clearwater #., Sandberg et al. 49; 
2. Ce. strictum Le Perennisl, tufted, the stems ascending, 10-15 cm. long, 
retrorsely hirsute, the internodes’ 1/2 the length of the leaves or less; ; 
leaves linear or linear-oblanceolate, 1-2 cm. long, 1-5 mm. wide, sessile, | 
subdvillous; inflorescence jlandular-villous, cymose on peduncles 5-8 cm. long, 
flowers several in each cyme, pedicels 1-2 cm. lon-, the subtending bracts 
scarious, 5-5 mm. long, ovate; calyx 5.5 mi. long, the sevals oblong-ovate, 
tne margins scarious; petals half again as long as the sepals, «-lobed at the 
sumait; cansule exceeding the sepals 3 mae, o mn. in diameter, tne teeth 16; { 
seeds not seene , 
parsel; inhabited sunny slopes, formin:, consiueratle colonies 
, Drv, s 
w Lost 
with Arctostamvloduvaeursi in the Vlearwater Torest. 
a i Net ee te 
