CARYOPHYLLACE^. (PINK FAMILY.) 87 



1. S. pilbera, Michx. (Great Chickweed.) Koot perennial; leaves 

 ail sessile ; petals longer than the ca/_ya:, deeply 2-cleft ; stamens 10. — Shaded 

 rocks, Penn. to lud., and southward. May. 



* * Stems erect or spreading ; whollij glabrous perennials, icith sessile and nar- 

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



-t- Seal ij-br acted ; petals 2-parted, equalling or surpassing the calyx. 



2. S. longifolia, Muhl. (Long-leaved Stitchwort.) Stem erect; 

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

 spreading ; cymes naked and at length lateral, peduncled, many-flowered, the 

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

 smooth. — Grassy places; common, especially northward. June, July. (Eu.) 



■3. S. longipes, Goldie. (LoxG-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 strictli/ erect; petals longer than the calyx; seeds smooth. — Maine to 

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



S. GKAMixEA, L. Resembling the last; leaves linear-lanceolate, ftroac/esf 

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

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



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

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

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

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

 (Eu.) 



-t- -t- Flowers terminal or in the JbrJcs of the stem or of leafy branches; In-acts 

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

 than the calyx. 



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

 fleshy, varying from linear-lanceolate to oblong; petals longer than the calyx, 

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

 Ringwood, 111. ( P^se^), and northward, April -June. (Eu.) 



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

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

 broadly lanceolate to ovate-oblong ; petals 2 -b, shorter than the calyx, or of tenet 

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

 R. I. to Minn., and northward. June- Aug. — Var. alpestris has the later 

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

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



7. S. hliniiflisa, Rottb. Spreading or creeping; stems or branches 

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

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

 St. John's {G. L. Goodale), and high northward. June. (Eu.) 



8. HOLOSTEUM, L. Jagged Chickweed. 



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

 3-5, rarely 10. Styles mostly 3. Pod ovoid, 1 -celled, many-seeded, opening 

 at the top by 6 teeth. Seeds rough, flattened on the back, attached by the 

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



