ARENARIA, CARYOPHYLLACE. 85 
smaller, in a nearly naked racemore panicle, capsule more oblong: Port- 
land, Oregon and vicinity, (Europe). 
* * Leaves very narrowly linear commonly acerose, often rigid and 
pungent. — 
+ Sepals broadly ovate obtusish, sometimes apiculate: flowers not 
densely aggregate. 
A. capillaris Poir. in Lam. Encycl. vi. 380... Leaves chiefly grouped 
at the base in fascicles upon a multicipital caudex, 4-24 inches long, 
somewhat pungent, little spreading; the cauline few pairs, much reduced: 
stems 4-8 inches in height: petals obovate, considerably exceeding the 
short obtuse sepals. Idaho to the Rocky Mountains. 
A. formosa Fisch, in DC. Predr. i, 402. More or less glandular-pu- 
bescent above, erect, 3-12 inches high: leaves linear subulate, half to two 
inches long, pungent: the cauline few, short and erect: flowers few in an 
open cyme; bracts small, lanceolate: sepals ovate, acute, 1-2 lines long, 2- 
nerved, membranously margined: petals half longer: capsule somewhat ex- 
ata _the calyx. In the higher mountains {rom Brit. Columbia to 
alifornia. . 
A. aculeata Watson Bot. King 40. Leaves fascicled at the ends of nu- 
merous barren shoots, glaucous, rigid, subulate and aculeate: stems 
nearly naked, somewhat scabrous above: flowers few, on long slender 
erect pedicels: sepals ovate acute: capsule becoming twice longer than the 
calyx, splitting into 3 2-toothed valves: seeds smooth. High hills, south- 
east Oregon to Nevada. 
Fa fepals ovate or ovate-lanceolate acuminate, shorter than the 
petals. 
A. congesta T. & G. Fl. i, 178. Smooth, glaucous, 4-12 inches high: 
leaves very narrowly subulate, scabrous on the margin, often pungent, the 
lower 1-3 inches long; cauline 6-12 lines long: flowers in 1-3 dense subum- 
bellate fascicles, with large dilated membranaceous bracts: sepals ovate- 
oblong, strongly concave with scarious margins, 1-3 lines long, acute: pet- 
als narrowly oblong, nearly twice as long as the calyx: capsule equalling 
ne oa In the mountains from Washington to California, Nevada and 
olorado. 
+ + + Sepals lanceolate to lance-linear attenuate, equalling or 
exceeding the petals. 
++ Flowers cymose, not densely aggregated. 
A. Burkei. A. Fendleri var. subcongesta Watson Bot. King 40. Stems 
several from a more or less ligneous caudex, smooth or glandular, 4-6 
inches high, many-leaved at base: leaves setaceous, somewhat flattened, 
glabrous: flowers more or less clustered upon short pedicels or the lateral 
ones sessile: bracts broad and scarious: petals but little exceeding the ovate 
acuminate scarious sepals. On bleak hilltops, eastern Oregon and Nevada 
to Brit. Columbia and the Rocky Mountains. 
‘A. Fendleri Gray Pl. Fendl. 13. Stems simple, 6-15 inches high gla- 
brous below, more or less glandular-pubescent above, imbricately many- 
leaved at base, leaves long, erect setaceous somewhat flattened scarious-ser- 
rulate glabrous: cymes strict, few-flowered: pedicels slender: sepals 
glandular pubescent, ovate lanceolate, cuspidate-acuminate, green with a 
broad scarious margin, nearly equalling the white obovate petals: capsule 
about equalling the calyx. New Mexico, etc., to eastern Oregon. 
++ ++ Flowers densely fascicled at the end ef the stem. 
A. Franklinii Dougl. in Hook. FI. i, 101 t. 35. A spanor less in height: 
_ branches erect, fastigiate, numerous fragile; leaves smooth subulate-setaceous, 
Very pungent, an inch long: flowers fascicled: sepals subulate scarious, 
