240 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
8. ALSINOPSIS Small. 
Densely tufted perennials, mostly less than 5 cm. high; leaves narrow, usually 
subulate; flowers solitary in the axils or in terminal cymes; sepals 5; petals 5, entire 
or emarginate; stamens usually 10; styles normally 3; capsules slightly longer than 
broad, opening by as many valves as there are styles. 
KEY TO THE SPECIES. 
Sepals obtuse. ... 2.2.0... 2020 202-22 e ee eee eeeees Le A. obtusiloba. 
Sepals acute. 2.2.2... eee cence eee eee eee 2. A. propinqua. 
1. Alsinopsis obtusiloba Rydb. Bull. Torrey Club 33: 140. 1906. 
Arenaria obtusa Torr. Ann. Lyc. N. Y. 2: 170. 1827, not All. 1785. 
Type Locauty: ‘‘On the higher parts of the Rocky Mountains.’’ 
RanGe: British America to Utah and New Mexico. ° 
New Mexico: Santa Fe and Las Vegas mountains; White Mountain Peak. Mead- 
ows, in the Arctic-Alpine Zone. 
2. Alsinopsis propinqua (Richards.) Rydb. Bull. Torrey Club 33: 140. 1906. 
Arenaria propinqua Richards. Bot. App. Frankl. Journ. 17. 1823. 
Arenaria verna aequicaulis A. Nels. Bull. Torrey Club 26: 352. 1899. 
Arenaria aequicaulis A. Nels. in Coulter, New Man. Rocky Mount. 185. 1909. 
TyPE Locauity: Barren grounds from Point Lake to the Arctic Sea. 
RanGE: British America to Utah and northern New Mexico. 
New Mexico: Top of Las Vegas Range above Sapello Creek (Cockerell). High 
mountains, in the Arctic-Alpine Zone. 
50. SILENACEAE. Pink Family. 
Herbaceous annuals or perennials with opposite, exstipulate, mostly sessile leaves; 
flowers in cymes, sometimes thyrsiform; calyx tubular with a short limb; petals 
clawed; fruit a capsule, dehiscent by longitudinal valves. 
KEY TO THE GENERA. 
Calyx strongly 5-angled or 5-ribbed, or both. 
Calyx cylindric, not angled; perennials............ 1. Saponaria (p. 240). 
Calyx ovoid, angled; annuals...................... 2. Vaccarta (p. 241). 
Calyx ribs usually 10, at least twice as many as the 
teeth. 
Styles 5, alternate with the foliaceous calyx teeth.. 5. AGRosTEMMA (p. 242). 
Styles 3 to 5, opposite the short, not foliaceous, 
calyx teeth. 
Styles mostly 3; capsules usually septate at the 
base.........2.222.-6-- -----.-- 3. SILENE (p. 241). 
Styles 5; capsule 1-celled to the base. eee eee 4. WAHLBERGELLA (p. 242). 
1. SAPONARIA. L. 
Perennial herb with stout, mostly simple, very leafy stems and large corymbose 
pink flowers; calyx 5-toothed, obscurely nerved; petals 5, long-clawed; ovary 1-celled 
or partially 2 to 4-celled; styles 2; capsule dehiscent by 4 short apical teeth. 
1. Saponaria officinalis L. Sp. Pl. 408. 1753. Bouncine Ber. 
TyPE Locauity: ‘‘Habitat in Europa media.”’ 
Rance: A native of Europe, often established as a roadside weed i in North America. 
New Mexico: Farmington (Standley 6873). 
Well established along ditch banks in this locality. 
