^WEETIA. TETRANDRIA. MONOGYNIA^ 187 



2. S. piisilla Pur sh: corolla rotate, twice as long as 

 the calyx ; stem simple, 1 -flowered •, leaves oblong. Pursh 

 Fl. I.p- 101. Roem. «J- Schult. VI. p. 131. 



Wliole plant scarcely above an inch high, with one or two pair 

 of small leaves, and a considerable sized blue fioiver. Divi- 

 sions of the corolla oblong, acuminate ; of the cahjx obtuse. Plu 



Hi.B. On the alpine regions of the White-hills of New-Hamp- 

 shire. June. Pur ah, Ii is also a native of Labrador. 



120. FRASERA. Walter. 



Cahjx deeply 4-parted. Corolla 4-parted, spreading ; 

 segments oval, with a bearded orbicular gland in the 

 middle of each. Capsule compressed, partly margined, 

 1-celled. Seeds fevVj imbricated, elliptic, with a mem- 

 branaceous margin. IF a It. Car. \xS7. Mich. Fi. 

 I. p. 97. A^titt. Gen. I.p. 102. lioem.^ Schult. 

 Gen. 439. Nat. prd. Gentians /« 5^, 



F. caroliniensis Walt. \. c p. 80. Pers, %n. I p. 

 137. F. Walteri Mich Fl. L p. 97. Pursh Fl. I.p. 

 101. £//ion -S'^•. L p. 205. Bart.Veg.Mat.Med.W. 

 t. 33. F. verlicillata Muhl. Cat. p. 17o 



Root biennial. Stem 3—5 feet high, erect, subquadrangular, 

 smooth. Leaves opposite and verticillate, oblong-lanceolate ; 

 the lower ones a foot long, and more than 3 inches broad. 

 Flowers verticillate; peduncles 1 -flowered, unequal. Seg- 

 ments of the calyx linear-lanceolate, acute, forolla greenish- 

 yellow, speckled with purple; segments acuminate, with an 

 oval or orbicular fringed gland in the centre of each. Stamens 

 shorter than the corolla, alternating with its segments ; ^la- 

 ments snhulaie ; anthers hr^e, oblong, yellow. Germen ob- 

 long, attenuated into a short style; stigma bifid. Capsule 

 much compressed, oval, acuminated w|tH the persistent style. 

 Seeds 6— 8. 



IUb. On West-Canada Creek, New- York. Prof. Had ley. 

 On the borders of the lakes in Pennsylvania and New-York. 

 July. PurshjM'uttalL American Cclumbo. 



The root of this plant is in considerable repute as a tonic, 

 but its-'virtues have, perhaps, been overrated. See Ives's ed. 

 of Paris's Phaemacologia. The genus Frasera is very 

 nearly related to the species of Swertia which are not corni- 

 culate. 



121. OCOLARIA. L. 



Calyx 2-parted, bracteiform. Corolla campanulate, 

 4-cleft; segments entire, (or crenulate.) Stamens sub- 

 didynamous, (equal, Nutt.J proceeding from the 



