TETRANDRIA MOXOGYNIA lit 



1/ cylindric, dense-flowered. Bracts orate, acuminate, with a green keel ami 

 membranaceous margin ami apex, the blonder point at length reflexed. Calyx 

 deeply 3-parted, (or rather 3-leaved,) membranaceous ; the outer or lower segmrn* 

 *v a i, truncate, cmarginate, with 2grccn keel-like lines; the lateral segments rath 

 3f longer, boat-shaped, acute, keel green, fringed with conspicuous hairs near the 

 *0BX Corolla dirty white, with a brown keel / segments ovate, very acute. Sta 

 mens very long ; anthers greenish white. Capsule 2-secded. Seeds oblong, con- 

 vex on one side, concave on the other, shining, amber-colored. 



Hub. Fields, and meadow grounds : common. Fl. May— Aug. Fr. July— Sept. 

 <)bs. This species differs remarkably from the two preceding, in the structure of lb* 

 'f'lyx. It is an introduced plant,— becoming very prevalent / and is generally much 

 d'sliked on account of its seeds mingling with those of the red clover, and affect- 

 ing the value of the latter, in the market. All kinds of Stock cat it freely ; and it 

 kas even been cultivated, by some farmers, as a sheep pasture : But I think it far 

 from being a desirable plant on a farm. Nine or ten additioi al species arc enu- 

 merated in the U. States. 



78. BARTONIA. Jfi//»/. Not of Mutt. Pursh, Hart, nor UndL 



[In honor of the late worthy Prof. B. S. Barton, of Pennsylvania.] 



Calyx deeply 4-parted, appressed. Corolla subcampanulatc, 4-parted; 

 lobes somewhat erect. Stigma thick, somewhat bifid, and decurrent 

 <>n the short style. Capsule 1-celled, 2-valved, surrounded by the per- 

 listent calyx and corolla. Seeds minute, numerous. 



Herbaceous : stem simple, subpaniculate above ; leaves minute, sessile, mostly 

 Opposite. Nat. Ord. 197. Lindl. Gbntlanbjb. 



I. B. paniculata, Muhl. Stem slender, paniculate above; leaves 



subulate ; peduncles opposite ; style shorter than the ovary. Eat. 



Man. p. 51. 



B. tenclla. Pers. Syn. I. p. 141. Torr. Fl. 1. p. 185. Ej. Camp. p. 58. 



Sagina virginica. WiUd. Sp. I. p. 719. Also, Muhl. Catal. p. 18. 



Centaurella paniculata* Mx.Am. l./>.98. Icov, tab. 12. f. \..Xutt. Gen. 



I. p. 101. Ell. Sk. 1. //. 204. Bigel. Bost.p. 52. Beck, Bot. p. 243. 



C autumnalis. Pursh, Am. 1. p. 100. 



Also, Centauriuni autumnale. Per*. Syn. I. p. 137. 



Andrewsia paniculata, Bart. Phil. 1. p. 89. Bart. Am. 2. p. 51. 



Icon, tab. 53. /. 2. Florul. Cestr. p. 21. 



Paniculate Bartonia. 



Plant yellowish green. Root annual. Stem 3 or 4 to 12 or 15 inches high, Verni- 

 er, angular by the decurrence of the leaves, often twisted, smooth. Leaves very 

 short (scarcely the eighth of an inch long), subulate, mostly opposite, appressed lo 

 the stem. Flowers mostly on opposite peduncles, often terminating the tranches 

 in threes; peduncles about the fourth of an inch in length, bracteatc at base. Ca- 

 lyz -segments lance-linear, acute, shorter than the corolla. Corolla pale greenish 

 yellow; lobes oblong, obtuse (acute, Ell. Torr.), slightly keeled. Stamens insert- 

 ed on the corolla at the clefts, about half as long as the lobes. Style very short, 

 covered by the decurrent lobes of the stigma. Capsule oblong, compressed. Seens 

 very numerous and minute, reddish. 



Hob. Sterile grounds ; in thickets, and clearings : frequent. Fl. Aug, Fr. Oct. 



Obs. I concur with Professors Torrey and Eaton, on the propriety of restoring 

 to this plant the name which Muhlenberg gave to it. There is one other species 

 is the Southern State*. 



