132 ALSINACEAE. 



Leaves lincar-lanccolatf, 3-nerved, ncutish, flat, less than 1 cm. long. 



4. A. qtiadrivalvis. 

 Sepals obtuse. 5. A. ohtusiloba. 



1. Alsinopsis macrantha Rydb. In sandy .soil in tlic mountains of Colo. 

 — Little Kate Basin, La I'lata Aloimtains. 



2. Alsinopsis propinqua (Richards.) Rydb. {Arciiaria propinqiia Richard- 

 son; ./. vcrna liirta Am. auth. ; A vcrna acquicaulis A. Nels.) In sandy soil 

 from Hudson Bay and Mackenzie River, to B. C, Colo, to Utah.— Alt. 8000- 

 13,000 ft. — Pike's Peak; Silverton; Saddle Cliffs; Georgetown; Little Kate 

 Basin, La Plata Mountains ; near Pagosa Peak ; South Park ; Boreas ; Beaver 

 Creek ; Chambers' Lake ; Eldora to Baltimore. 



3. Alsinopsis Rossii (Richards.) Rydb. {Arcnaria Kossii Richards.) In 

 arctic-alpine regions from the arctic coast to Colo, and Wash. — Alt. 11,000- 

 13,500 ft. — Sierra Blanca ; Bald Mountain. 



4. Alsinopsis quadrivalvis (R. Br.) Rydb. (Arenaria quadrivalvis R. Br.) 

 In alpine-arctic situations, along the arctic coast of North America and on 

 alpine peaks in Colo. — " Colorado." 



5. Alsinopsis ohtusiloba Rydb. {Arcnaria obtiisa Torr. ; not All. ; A. biflora 

 S. Wats., in pari; A. Sajancnsis Robinson; scarcely Willd.) On exposed 

 mountain tops from Alb. to B. C, N. M. and Utah. — Alt. 10,000-13,500 

 ft. — Mt. Garfield ; Pike's Peak p- Beaver Creek ; Ward, Boulder Co. ; Mount 

 Ouray; Alpine Tunnel; Mt. Harvard; Cameron Pass; Iron Mountain; West 

 Spanish Peak; near Pagosa Peak; Gray's Peak; Mt. Princeton; Seven 

 Lakes; Caribou; Empire; headwaters of Clear Creek; Massif de I'Arapahoe ; 

 mountains near Como ; Cameron Pass ; Graymont ; Beaver Creek ; Berthoud 

 Pass; northwest of Coino; Gray's Peak; Cameron Pass; Graymont; Ethel 

 Peak. 



7. TISSA Adans. Sai^d Spurry. 



I. Tissa sparsiflora Greene. Sandy and alkaline soil from Wyo. to B. C, 

 Colo, and Ore. — New Windsor. 



Family 52. CARYOPHYLLACEAE Reichenb. Pink Family. 



Calyx-ribs, usually 10, at least twice as many as the teeth, running both into the 

 teeth and the sinuses. 



Styles mostly 3 ; capsule usually septate at the base. i. Silene. 



Styles s ; capsule i-celled to the base. 2. Lychnis. 



Calyx strongly 5-angled and 5-ribbed. 3. Vaccaria. 



I, SILENE L. Catchfly, Campion. 



Annuals. 



Glabrous or nearly so or the upper nodes glutinous. 



Stem-leaves linear or linear-lanceolate ; Ijracts narrowly linear-lanceolate. 

 Petals exceeding the sepals by 2-5 mm. ; blade obovate-cuneate, 2-cleft. 



I. 5'. antirrhina. 



Petals none or small, not exceeding the sepals ; blade cuneate, truncate or 



emarginate at the apex. 2. S. antirrhina depauperata. 



Stem-leaves oblanceolate or lanceolate ; bracts lanceolate, more or less scarious- 



margined below. 3. 5". antirrhina vaccariifolia. 



Viscid-pubescent or hirsute throughout. 4. .S". noctiflora. 



