238 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
5. SAGINA L. Prartworrt. 
Low herbs, 4 cm. high or less; leaves awl-shaped; flowers small, terminating the 
stems or branches; sepals 4 or 5; petals 4 or 5, not divided, often wanting; capsule 4 ~ 
or 5-valved. 
1. Sagina saginoides (L.) Britton, Mem. Torrey Club 5: 151. 1894. 
Spergula saginoides L. Sp. Pl. 441. 1753. 
Sagina linnaei Presl, Rel. Haenk. 2: 14. 1835. 
Alsinella saginoides Greene, Fl. Franc. 125. 1891. . 
Tyre Locauity: ‘‘Habitat in Gallia, Sibiria.’’ 
RanGE: Greenland and Alaska to New Mexico; also in the Old World. 
New Mexico: Winsors Ranch; Chama. Damp meadows, in the Transition Zone. 
6. MOEHRINGIA L. 
Weak stoloniferous perennials with few axillary or terminal, small, white flowers; 
ovary at first 3-celled; seeds few, smooth, appendaged at the hilum; leaves lanceolate 
to oval. 
KEY TO THE SPECIES. 
Petals longer than the obtuse sepals; leaves elliptic-oblong to oval, 
mostly obtuse; stems terete... ..........202..202 eee eee 1. M. lateriflora. 
Petals shorter than the acute or acuminate sepals; leaves lanceo- 
late, acute; stems angled................. 00... cee eee ee 2. M. macrophylla. 
1. Moehringia lateriflora (L.) Fenzl, Versuch Alsin. 18. 1833. 
Arenaria lateriflora L. Sp. Pl. 423. 1753. 
TypE Locality: ‘‘Habitat in Sibiria.’’ 
Rance: British America to New Jersey, Utah, and New Mexico; also in Asia. 
New Mexico: Winsors Ranch; Tierra Amarilla. Damp woods, in the Transition 
Zone. 
2. Moehringia macrophylla (Hook.) Torr. in Wilkes, U. S. Expl. Exped. 15: 246. 
1874. 
Arenaria macrophylla Hook. Fl. Bor. Amer. 1: 102. 1830. 
TypE Locauity: ‘‘North-West America, in shady woods.” 
Rance: British America to Vermont, New Mexico, and California. 
New Mexico: Santa Fe Canyon (Heller 3690). Damp woods, in the Transition 
Zone. 
7. ARENARIA L. Sanpworr. 
Slender annuals or perennials with more or less diffusely branched stems; leaves 
flat to subulate; flowers in open or capitate cymes or solitary in the axils; sepals 5, 
often ribbed; petals 5, white, entire or rarely notched; stamens normally 10; styles 3; 
capsule globose to oblong, opening by twice as many valves as there are styles. 
KEY TO THE SPECIES. 
Leaves narrowly linear, more or less rigid or pungent. 
Plants glabrous; cymes open, many-flowered...............- 1. A. eastwoodiae. 
Plants glandular, at least on the pedicels; cymes various. 
Calyx and pedicels densely glandular; lower leaves 50 to 
100 mm. long, erect or ascending. ................ 2. A. fendleri. 
Clayx glabrous, the pedicels only slightly glandular; 
lower leaves 15 mm. long or less, mostly divergent. 3. A. aculeata. 
