^renaria. CARYOPHYLLACE^. ^.n 



§ 1. The 3 valves of the capsule 2-cleft or parted : seeds not appendaged at the hilum ■ 

 cesjntose pereimials, mostly scarious-hr acted. — Arenaria proper. 

 1. A. congesta, Nutt. Smooth, glaucous, 4 to 12 inches high- leaves very 

 narrowly subulate, scabrous on the margin, often pungent, the lower 1 to 2' inches 

 long, the caulme \ to 1 inch long : flowers in 1 to 3 dense subumbellate llscicles 

 with large dilated membranous bracts : sepals ovate-oblong, stronrdy concave scari' 

 ously margined, obscurely 3-nerved, 11 to 2^ lines long, acute : petals narrowlv 

 oblong, nearly twice as long as the calyx : stigmas capitellate : capsule equallin«r the 

 calyx. — Torr & Gray, Fl. i. 178 ; Watson, Bot. King Exp. 39. Brewerina suffra- 

 tescens, Gray, Proc. Am. Acad. viii. 620. 



Var. subcongesta, Watson. Flowers less densely fascicled and somewhat 

 cymose. — A. Fendleri, var. subcongesta, Watson in Bot. King Exp. 40. 



/J^*^''?T^*'^'"^^™'^^^''^''^""S^°'^ Territory to Colorado; at Summit in the Sierra Nevada 

 {Bolander) ; above Carson City, Anderson. The variety in the northern Sierra Nevada (Lemmon) 

 and eastward. The typical form has the flowers nearly sessile in close heads. Brewerina suf- 

 fridescois, (^va.j, is a form somewhat woody at base and with the flowers upon longer nearly equal 

 pedicels. The remarkable character of capiteUate or somewhat capitellate stigmas it has in com- 

 mon with A. Fcndlcri, and they are also found in A. capillaris and A. Franklinii. 



2. A. capillaris, Poir. More or less glandular-pubescent above, erect, 3 to 12 

 inches high : leaves linear-subulate, 1 to 2 inches long, pungent ; the cauline few, 

 short and erect : flowers few, in an open cyme ; bracts small, lanceolate : sepals 

 ovate, acute, U to 2 lines long, 3-nerved, membran ously margined: petals half 

 longer: capsule somewhat exceeding the calyx. — Including A. nardifolia, Ledeb. 

 (Hook. Fl. 1. 98, t. 32), and some other Asiatic forms. A. formosa, Torr Bot 

 Wilkes Exp. 243 ; Watson, Bot. King Exp. 39. 



In the mountains from the British boundary southward ; Donner Pass {Torrcy) ■ Silver Jloun- 

 tain, at 11,000 feet altitude, Brewer. The more typical glabrous form seems not to occur here. 



3. A. pungens, Nutt. Pubescent throughout, cespitose, 2 to 3 inches hif^h • 

 leaves Imear-subulate, 3 to 5 lines long, pungent, crowded : flowers in an open 

 cyme, leafy-bracted : sepals lanceolate, acuminate, pungent, 11 to 3 lines long, rather 

 obscurely 3-nerved : petals about equalling the calyx : the capsule shorter'; 

 very few, smooth. — Torr. & Gray, Fl. i. 179 ; Watson, 1. c. 



In the Sierra Nevada, above the Big Tree Grove {Bolander) ; Silver Mountain, at 11,000 feet 

 {Brewei-) ; above Carson City {Anderson) ; and eastward to Colorado. 



A. Franklinii, Dough, is of similar habit, but stouter and less pubescent ; stems leafv at base • 

 flowers fascicled ma rather close cyme : sepals 3 to 5 lines long, smooth and shining, scariouslv 

 margined, as also the large bracts : petals as long, and capsule shorter. — Oregon to Colorado 

 and perhaps to be expected in the mountains of California. 



§ 2. The 3 valves of the capsule entire : seeds not appendaged at the hilum : low 

 annuals with foliaceous bracts {the Californian sjJecies). — Alsixe. 



4. A. Douglasii, Torr. & Gray. Sparingly pubescent with spreading hairs or 

 glabrous, slender, much branched, 3 to 6 inches high : leaves filiform, i to 1 inch 

 long : flowers rather large, on long slender pedicels : sepals oblong-ovate, acute, 

 3-nerved, li lines long: petals obovate, 2 lines long or more: capsule globose, 

 equalling the calyx : seeds large, flat, smooth, acutely margined. — Fl. i. 674. 



Dry hillsides, throughout California, The very similar A. tenella, Nutt., of Oregon and 

 AVashington Territory, is distinguished by narrower and more strongly nerved sepals, oblong 

 capsule, and small minutely roughened seeds. 



5. A. Californica, Brewer. Glabrous, very slender, branching, 2 to 6 inches 

 high : leaves lanceolate, 1 to 2 lines long, obtusish : flowers small, on slender pe»li- 

 cels: sepals oblong-ovate, acute, 3-nerved, 1 to U lines long; petals spatulate, 

 about a half longer : capsule oblong : seeds small, sharply muriculate. — Bolander, 

 Cat. 6. A. brevifolia, var. (1) Californica, Gray, Proc. Calif. Acad. iii. 101. 



Sonoma County to Santa Cruz and eastward ; Auburn, Bolander. 



