46S DECANDRIA. PENTAGYNIA, 3ii.rg-ula. 



g'cnder. Leaves very narrow, spreading, simple at the tip, 

 atuie. Peduncles axillary and terminal, nearly an inch long. 

 Flowers erect. Calyx as long as the corolla ; leaflets ovate, 

 scarious on the margin. Feials white, oblong, obtuse. Sta- 

 •niena sometirries 5. Styles very short. Ca/iaule half as long 

 again as the calyx. Seeds minute, subreniform, slightly sca- 

 brous, 

 IIab. In sandy fields and upon rocks. New-Jersey. JVuttaU- 

 In Delaware. Muhlenberg. 



307. CERASTIUM. t. 



Calyx 5-lcaved. Petals 5, bifid or eniarginatCy 

 Cc/?jw/<? J -celled, bursting at the summit with 10 teeth, 

 Gcn,pL'i91. Nutt. Gen. I. p. 291. J u s s. p, 

 301. L a nu III. U 392. Nat. Ord. Gary opHYLLEic 

 Juss. Mouse- ear Chickweed. 



* Pttals not exceeding the calyx in length. 



1. C vulgalum L. : hairy and viacid, cespitose, suberect; 

 leaves ovate; flowers subcapitate, longer than their pedicels. 

 Willd. Spec. 11. p. 811. Smilh FU Brit. 11. p. 496. 

 Eng. Dot. t. 7Ca. Pursh Fl. I. p. 320. Big. Bost. p. 

 111. Elliott Sk. I. p. 521. 



Root annual. Whole plant pale green, and when young viscidly 

 pubescent. Stems numerous, about 6 inches high, a little 

 spreading, terete. Leaves opposite, broad-ovate, closely ses- 

 sile, obtuse. Flowers in subcapitate clusters from the forks of 

 the stem. Leaflets of the calyx lanceolate, acute. Petals 

 oblong, emarginate, scarcely longer than the calyx. Stamens 

 10. Ca/isule cylindrical, a little incurved, as long again as the 

 calyx. 



Hab. In fields and on dry hills. May—September. TnUo- 

 duced. 



'2. C. viscosum L. : hairy and viscid, ppreading; leaves 

 oblong-lanceolate ; flowers somewhat panicled, ehorter than 

 their pedicels. Willd. Spec. II. p. y 12. Smith Fl. 

 Brit. II. p. 497. Eng. Bot. t. 790. Pursh Fl. I. p. 320. 



Root perennial. Whole plant deeper green than ilie preceding, 

 rarely viscid. Sterns numerous, spreading, 6 — 12 inches high, 

 dichotombusly paniculate above. Leaves rather obtuse, about 

 three-fourths of an inch long, and 2 — 3 lines broad. Flotvers 

 from the divisions of the stem, shorter than their pedicels, espe- 

 cially when in fruit. Leaflets of the calyx oblong-lanceolate, 

 scarious on the margin. Percys rb^^ute, a little loiiger than 



