CAUYOPHYLLACEAB (piNK FAMILY) 379 



about half as lung as the very blwit pod; seeds dark brown, relatively lai-ge. 

 {Biida borealis Wats.; Tissa canadensis Britton ; 8. borealis Robinson.) — 

 Coast of Lab. to H. I. {J. F. Collins). 



* * * Fleshy biennial with a thick root. 



4. S. mSdia (L.) C. Presl. Stout root perpendicular; stems spreading; 

 flowers large ; pods at length 7 mm. long, exceeding the calyx; seeds mostly 

 winged. — Near Salina, N. Y. {Fry); also Cal. (Eu.) 



2. SPERGULA L. Spuekey 



Stamens 5 or 10. Styles 5. The 5 valves of the pod opposite the sepals. Em- 

 bryo spirally annular. Leaves in whorls. Otherwise as Spergularia. (Name 

 from spargere, to scatter, from the seeds. ) 



1. S. AKVENSis L. (CoKN S.) Annual, bright green, scarcely or not at all 

 viscid ; leaves numerous, in whorls, thread-shaped (2-5 cm. long) ; stipules 

 minute ; petals wliite ; seeds roughened with minute whitish papillae. — Grain 

 fields, etc., common. (Nat. from P)u.) 



2. S. SATiVA Boenn. Similar but dull green and distinctly viscid ; flowers ill- 

 scented ; seeds margined, obscurely dotted, not papillate. — Sparingly adventive 

 in fields, Ct. {Graves) and Vt. {Jones) to Ont. {Fletcher). 



3. SAGtNA L. Peaelwort 



Sepals 4 or 5. Petals 4 or 5, undivided, or often none. Stamens as many as 

 the sepals, rarely twice as many. Styles as many as the sepals and alternate 

 with them. Pod many-seeded, 4-5-valved to the base ; valves opposite the se- 

 pals. —Little matted herbs, with thread-like or awl-shaped leaves, no stipules, 

 and small flowers terminating the stems or branches ; in summer. (Name from 

 sagina, fattening ; previously applied to the Spurrey.) 



Upper leaves not proliferous ; petals not longer than the sepals. 

 Seeds at maturity orange-brown, dotted with resinous atoms , . , 1. S. decvmbens. 

 Seeds at maturity dark or grayish brown, smoothish or roughened but with- 

 out atoms . . . ' 2. S.procumheTis. 



Upper leaves with fascicles of reduced leaves in their axils; petals decidedly 



longer than the sepals 3. 5. nodosa. 



1. S. deciimbens (Ell.) T. &. G. Annual, ascending; the peduncles and 

 calyx with the margins of the upper leaves at first glandular-pubescent ; leaves 

 short, often bristle-tipped ; sepals and valves 5 or rarely 4 ; pod oblong-ovoid, 

 nearly twice longer than the calyx. {8. apetala Am. auth., not Ard.) — Mass. 

 to 111., Mo., and southw. Var. SMfTuti (Gray) Wats., a slender form, apetal- 

 ous, at least in the later flowers. — In waste ground near Philadelphia, and in 

 sandy fields at Somers Point, N. J. (C. E. Smith). 



2. S. prociiinbens L. Annnal or perennial, depressed or spreading on the 

 ground, glabrous ; leaves linear-thread-shaped ; apex of the peduncle often 

 hooked soon after flowering ; petals shorter than the broadly ovate obtuse sepals, 

 sometimes none. — Springy places and damp rocks, chiefly near the coast, Nfd. 

 to Pa. and Del.; also Ont. and Mich. (Eu.) 



3. S. nodbsa (L.) Fenzl. Tufted perennial, erect, glabrous; upper leaves 

 very short, proliferous in their axils; petals 5, white, conspicuous. — Rocky 

 shores, etc., Cutler, Me. {Kennedy), Isle Royale, L. Superior, and northw. 

 (Eu.) Var. GLAND0L6SA (Bess.) Asch. Peduncles, etc., more or less glandu- 

 lar-puberulent. — Cape Ann, Mass., to Me. (Eu.) 



4. ARENARIA L. Sandwort 



Sepals 5. Petals 5, entire, sometimes barely notched, rarely wanting. Sta- 

 mens 10. Styles 8, rarely more or fewer, opposite as many sepals. Pod short, 

 splitting into as many or twice ps many valves as there are styles, few-many- 



