CARY0riIVLLACE.1<:. (I'INK FAMILY.) 87 



1. S. ptlbera, Michx. (Grkat Chickwekd.) Hoot perennial; leaves 



aU sessile ; petals loiujer than the ca///x, deeply 2-cleft ; stumens 10. — JShaded 

 rocks, Peuu. to Ind., and southward. May. 



* * Stems erect or spreading ; wholli/ glabrous perennials, icilh sessile and nar- 

 row or small leaves ; stamens usually 10, perltji/nous. 

 •t- Seal ji-bracted ; petals 2-parted, equalling or surpassing the cali/x. 



2. S. longifblia, Muhl. (Lono-leaved Stitchwort.) Stem erect, 

 weak, ofteu with rough angles (8-18' high) ; leaves linear, acntish at both ends, 

 spreading ; ci/mes naked and at length lateral, peduncled, many-flowered, tha 

 slender pedicels spreading ; petals 2-parted, longer than the calyx; seeds 

 smooth. — Grassy places; common, especially uorthward. June, July. (Ku.) 



3. S. 16ngipes, Goldie. (Long-stalked S.) Shining or somewhat 

 glaucous, very smooth; leaves ascending, lanceolate or linear-lanceolate, acute, 

 broadest at the base, rather rigid ; cyme terminal, few-flowered, the long pedi- 

 cels strictlfi erect; petals longer than the calyx; seeds smooth. — Maine to 

 Minn., rare ; common farther north. (Eu.) 



S. GUAMixEA, L. Resembling the last; leaves linear-lanceolate, ^roac/e.sf 

 above the base ; pedicels ividehj sjtreading : seeds strongly but minutely rugose. 

 — Becoming ratlier frequent. (Int. from Eu.) 



4; S. uligin6sa, Murr. (Swamp S.) Stems weak, decumbent or dif- 

 fuse, at length jirolonged, leaving the naked and usually sessile cymes lateral ; 

 leaves lanceolate or oblong, veiny; petals and ripe pods as long as the calyx; 

 seeds roughened. — Swamps and rills, Md. to X. Eng., and northward; rare. 

 (Eu.) 



■*- -t- Flowers terminal or in the forks of the stem or of leaf g branches; bracts 

 foliaceous ; petals 2-parted, small or often none; styles 3-4,' pod longer 

 than the calyx. 



5. S. crassif61ia, Ehrh. Stems diffuse or erect, flaccid ; leaves rather 

 JJeshy, xaryiu'^ from linear-lanceolate to oblong; petals longer than the calyx, 

 or wanting; seeds rugose-roughened. — Springy places, eastern Ky. (Short), 

 Kingwood, 111. (Vasey), and northward. April -June. (Eu.) 



6. S. bore^lis, Bigel. (Xouthlrn S.) Stems erect or spreading, flaccid, 

 many times forked, at length resolved into a leafy cyme; leaves varying from 

 broadly lanceolate to ovate-oldong ; petals 2- f>, shorter than the calyx,orofiner 

 none: sepals acute; styles usually 4; seeds smooth. — Shaded or wet places, 

 K. I. to Minn., and northward. June -Aug. — Var. altestris has tlie later 

 flowers more cymose, and their bracts small and partly scarious, also tlie seeds 

 obscurely reticulated or roughish. — Lake Superior, Dr. Bobbins. (Eu.) 



7. S. humifiisa, Hottb. Spreading or creeping; stems or brandies 

 (2' high) l-3flowered; leaves flesh i/, ovate or oblong (2 -3" long); petals a 

 little longer than (he calyx : seeds smooth. — Northern border of Maine on the 

 St. John's (G*. A. G'oof/a/e), and liigh northward. June. (Eu.) 



8. HOLOSTEUM, L. Jagged Ciiickweed. 



Sepals .'). Petals 5, usually jagged or denticulate at the point. Stamens 

 3-5, rarelv 10. Styles mostly 3. Pod ovoid, 1 -celled, many-seerh^d, opening 

 at the top by 6 teetli. Seeds rougli, flattened on the back, attac-hed by the 

 inner face. — Annuals or biennials, with several (white) flowers in an umbel. 



