Sagina. CARYOPHYLLACE^. 247 



A. thymifolia, James, Cat. 181. A. obtusa, Torr. Ann. N. Y. Lye. ii. 170. A. hiflora, Wats. 

 Bibl. Index, 94, not L. A. arctica, and vars. of various authors, not Stev. Stellaria 'bi flora, 

 L. Spec. i. 422. Ahine bijiora, Wahleub. Fl. Lapp. 128 ; Fenzl in Ledeb. Fl. Ross. i. 355.— 

 Mt. Albert, Lower Canada, Allen, Macoun, to Labrador and Bering Strait, southward to 

 Oregon, Cusick, and along the Rocky Mts. to New Mexico, Parrti, and Arizona, Lemmon. 

 (Greenland, Siberia.) A common species widely distributed in alpine and arctic regions of 

 the Old and New World ; fl. July, August. Of its numerous and confluent forms, seemingly 

 due to individual environment, the following only need be mentioned : var. RiofouLA, 

 Robinson (Proc. Am. Acad. xxix. 305 ; Alsine bijiora, var. rigidula, Fenzl, 1. c), with leaves 

 erect, firm in texture aud rather closely imbricated ; and var. carnosula, Robinson, 1. c. 

 {Ahine bijiora, var. carnosula, Fenzl, 1. c), more flaccid, with leaves spreading and slightly 

 fleshy. 



A. laricifolia, L.? Slightly woody and much branched at the base : stems clothed with 

 linear acicular secund ciliolate-denticulate leaves; fertile branches erect, simple, 4 to 7 

 inches in height, 2-5-flowered : sepals 3| lines in length, linear-oblong, 3-nerved : petals 

 oblong or narrowly obovate, entire, twice as long as the calyx. — Spec. i. 424. — An alpine 

 European species at various times reported from Alaska, but still somewhat doubtful. Plants 

 collected upon the Porcupine River by J. H. Turner certainly possess much resemblance to 

 the European plant, but differ in their shorter sepals and less leafy stems. It is not unlikely 

 that they may prove merely a tall and long-petalled form of the preceding polymorphous 

 species. 



++ ++ Petals broadly obovate, much exceeding che calyx : Alaskan. 



A. arctica, Stev. Stems I to 3 inches long, glandular-pubescent : lower leaves narrow, 

 linear, obtuse, slightly fleshy, crowded upon the bases of the stems, nearly or quite glabrous, 

 sometimes slightly ciliated near the base, half a line in breadth ; upper leaves a little broader ; 

 pairs rather distant ; flowers solitary, terminal upon slender glandular-pubescent pedun- 

 cles, 5 to 7 lines in diameter : capsule 3^ to 4 lines long, considerably exceeding the sepals : 

 seeds minutely roughened and slightly crested. — Stev. in DC. Prodr. i. 404; Cham. & 

 Schlecht. Linnaa, i. 54; Hook. Fl. Bor.-Am. i. 100 (excl. vars.) ; Torr. & Gray, Fl. i. 181, in 

 part. Alsine arctica, Fenzl, Verbreit. Alsin. 18, & in Ledeb. Fl. Ross. i. 355; Regel, Bull. 

 Soc. Nat. Mosc. xxxv. 219, 227 (excl. var. breviscapa). — W. aud N. Alaska and adjacent 

 islands. 



A. naacrocarpa, Puksh. Stems 2 to 4 inches long, covered except near the ends with the 

 densely imbricated lance-linear obtuse conspicuou.sly ciliated leaves; these three fourths line 

 broad ; flowers solitary, terminal, often exceeding half inch in diameter : valves of the 

 mature capsule fully 6 lines in length; seeds slightly margined. — Fl. i. 318; Cham. & 

 Schlecht. 1. c. 55 ; Hook. 1. c. 101 ; Torr. & Gray, 1. c. 182, 675. A. arctica, var. j8 grandi- 

 Jiora, Hook. 1. c. 100, t. 34, f. B. Alsine macrocarpa, Fenzl, Verbreit. Alsin. 18; Regel, 1. c. 

 235, t. 8, f. 6-9; A. arctica, var. breviscapa, Regel, 1. c. 228. — W. Alaska near the coast. 

 (Siberia.) Regel's elaborate subdivision of the Siberian forms of this species is not war- 

 ranted in America in the absence of abundant fruiting material. 



^_ ^__ Species of the Atlantic and Gulf States, neither arctic nor alpine. 



A. Caroliniana, Walt. Stems several to many, glandular-pubescent and viscid above, 

 3 to 8 inches in height, densely leafy near the base : leaves linear-subulate, rigidulous, 

 pungent, triangular in section, channelled above ; the lower imln-icated and more or less 

 squarrosely spreading ; the upper reduced, distant : cymes few-flowered ; pedicels slender, 

 ascending: se])als oval, H lines in length: petals broad, rounded at the apex. —Car. 141 ; 

 Wats. & Coulter in Gray, Man. ed. 6, 85. A. squarrosa, Michx. Fl. i. 273; Ell. Sk. i. 520; 

 Torr. Fl. N. Y. i. 95. A. imbricata, Raf. Med. Rep. hex. 2, v. 361, & in Desv. Jour. Bot. i. 

 229 (1808). A. Rafinesquiana , Seringe in DC. Prodr. i. 409. Ahine. squarrosa, Fenzl in 

 Gray, Man. ed. 2, 57; Gray, Gen. 111. ii. 34, t. Ill ; Chapm. Fl. 49. — Pine barrens, S. New 

 York to Florida ; fl. June, July. 



13. SAGINA, L. Pearl wort. (Name from the Latin snginare, to fatten; 

 the plants though small and delicate sometimes grow abundantly in otherwise 

 barren regions aud are grazed by sheep.) — Low slender herbs commonly cespitose 



