i^LANtAGo. TETRANDR[A. MONOGYNU. 185 



flowers distant ; bracts ovate, acute, as long as the calyx ; sta- 

 mens included. KutL Gen. i. p. lOOf P. hybrida BarU 

 FL Philad, H. p. 2 1 4. P. Imearifolia M u h L Cat. p. 1 5 ? ' 



Jiool annual. Leaves numerous, about an inch long. Scafie 



2—3 inches long. Flowers subimbricated. Segments of tne 



. calyx rigid, ovate, acute, carinate. Ca/isule globose, 2-seeded, 



Hab. On a hill near the new water-works, Piiiladelphia. In the 



exsiccated :knal on the road to Lemon-Hill. Barton. la 



it a variety of P. interrufua ol Lamar k and Elliott? 



8. Pi maxima J acq.: leaves ovate, subdenticulate 



9-nerved ; spike cylindrical, imbricated ; scape terete, J ac7 



^€ol. I. p. 82. Icon. rar. I. t. 28. (fide fVilld. Spec. I. l] 



642.) Roem.i^ Schiilt.lll.^.lU, F. cucullata Lam. 



Snc. V. p, 370. Pursh Fl.l.p. 98. 



Hab. In wet rocky situations. Maine. July — August. Pursh, 

 Also a native of Siberia. Perhaps the synonym of Pursh 

 tefeites to P. cordata. 



Uli BARTONIA. Muhlenberg, 



Calyx 4-parted, appressed. Corolla siibcampanu» 

 late, 4-parted; segments somewhat erect. Stig?na 

 thick, glandular, somewhat bifid. Capsule 1-celled, 

 2-valvea, many-seeded, surrounded by the persistent 

 calyx and corolla. Muhl. ap. Wit Id. Act. Soc, 

 Amk. Nat. Cur. III. p. 444, Cat. p. 15. Centau- 

 RELL A Mich. FL I. p. 97. Xutt. Gen. I. p. 101. 

 Roem. £s? Schult. Gen. 440. Centarium Pers. 

 aSz/w. I.p. 137. Andrewsia Spreng. {Mq Bart.J 

 Nat. Ord. Gentians Juss, 



B. tmella Muhl. : culm somewhat branched ; pedun- 

 cles opposite, the lower ones branched ; segments of the co- 

 rolla ovalj acute, scarcely fonger than the calyx; style very- 

 short. MuhL 11. cc. Pers. Syn. I. p. 141. Cent.^u- 

 JiELLA paniculata M i c h. FL I. p. 1)8. t. 1 2. f. 1 . Elliott 

 Sk. I, p. 204. C. aulumnaiis P ur s h FL ]. p. 100. Roem, 

 4r Schult. 111. p. 162. Centarium autimmale Pete, 

 Syn, I. p. 137. Sagina virginica Willd. Spec. J. p. 719. 



Root annual. Stem 3—8 inches high, very slender, quadrangu- 

 lar, glabrous. Leaves very minute, resembling bracts, the 

 lower ones alternate ; upper ones opposite Flowers terminaL 

 Calyx deeply 4-parted; segifients linear-lanceolate, acute. 

 Coro//a white,. smooth. Stamens included; anr/zers 2-cel led, 

 . rordate. ^S^/Z^-m* cbtusc. Ca/j*«/f oblong. .5fff/« numerous^ 

 24 



