83 DIADELPHIA. DECANDRIA: 



H. PANICULATUM. Ell Leaflets Imear-bnceolate, smoothish, margins revolute; lower calyx segment long: 



Fl. Latter end of July, and after. Fr. mat. Beginning of October. 



Hab. Open woodlands: frequent. 2 to 3 feet high: flowers purple; pod 2 to 4 jointed, tenacious. 



Obs. With great defeience to Mr- Elliott's judgment, I think thia is Willdeiiow's H. paniculatum. See 

 Ell. Vol. 2. p. 211. tnH. glabellum. 



H. OBTUSUM ? £'/Z. Leaflets ovate, obtuse, lateral ones subcordate; joints of the pod suborbicular, reticulate. 

 Fl. Latter end of August. Fr. mat. Middle of October. 



iJiib. Dry woodlands: Barrens: not common. 1 to 2 feethigh: flowers violet; pod about 2 jointed. 



i^bs. Mr. Schweinitz thought this was the H. glabellum, oi MichAux, and Elliott; but on a careful re- 

 examination, lincline to believe it is the H- obtusum— and such was the opinion of Dr. Baldwin, who saw 

 my specimens. 



H. BRACTEOsuM. Ell. Glabrousf; leaflets ovate, acuminate and acute; bractes large, ovate, acuminate, ji 



Synon. H. cuspidatum. JVilld. Muhl. 



Fl. Middle of August. Fr- mat. Beginning of October. 



Hub. "Woodlands, below the Bath: not common. 4 to 5 feet high: flowers purple; pod about 6 jointed. 



H. CANADENSE. Ell Stem angular-striate; leaflets lance-ovate, rather obtuse; racemes axillary & terminal. 



Fl. Latter end of August. Fr. mat. Middle of October. 



Hab. Woodlands: near Job Darhngton's, Stc. frequent. About 2 feet high: flowers purple; pod 4 jointed." 



H. viRiDiFLORUM. Ph. Pubescent; leaflets ovate, sub-acute, scabrous beneath; racemes very hairy. 



Fl. Last of July, and after. Fr. mat. Beginning of October. 



Hab. ThickeTs: T- Bennett's: not common. 3 to 4 feet high: flowers greenish purple; pod 3 to 5 jointed. 



Obs. This appears to be distinct from Mr. Elliott's H. viridiflorum; the leaves being remarkably scab- 

 rous and tenacious on the under surface. The flowers, on shrivelling, become greeni^h, and often of ac 

 indigo blue. The peduncles are frequently quite viscid, as remarked by Mr. Elliott of his plant. 



H. ROTUNDTFOLimi. Ell. Stem prostrate, hirsute; leaflets orbicular; stipules cordate, acuminate. 



Synon. H. canescens? IVilld. 



Fl. Middle of August. Fr. mat. Beginning of October. 



Hab. Rocky woodlands: near Ed. Darlington'*: not common. 2 to 4 feet long: flowers bright purple. 



Obs. The flowers of this are showy and handsome— always of a deep, bright purple, so far as I have ob- 

 served— the pod 3 to 5 jointed. 



It is very probnble there may be other species of this difficult genus, in this vicinity; but the 

 foregoing are all that I have been able to determine with any degree of satisfaction. 



CLASS XVII. SYNGENESIA. 



OI&DSS, FOLYeAMIA AEQUAI.ZS. 

 jj^. Florets all ligulate : Receptacle mostly naked. 



276. LEONTODON. Nutt. Gen- 627. 

 [Gr. Leon, /eonios, a lion, & Odous, odontos, a tooth; from a fancied resemblance in the teeth of the leaves.] 



Cal. oblong, double; outer one loose. Pappus stipitate, pilose, radiate. Recept. punctate. 

 L- TARAXACUM. EX Outer calyx reflexed; scapes 1 flowered; leaves runcinate, dentate. 

 Vulgo — Dandelion) — from the French, Dent de lion. 



Fl. Middle of April till autumn. Fr. mat- June, and after. 



Hab Pastures; meadows, &c. very common. Scapes 6 to 12 inches high: flowers yellow. 



Obs. This well-known plant is a foreigner; but completely naturahzed, and rather moie common tban*^; 

 welcome, in our fields and gardens. It is said to be esteemed as a salad, by some; and to possess diuretic 

 properties,— as one of its vulgar names would indicate. 



I 

 277. KRIGIA. Nutt. Gen. 633. | 



[In honor of David Krieg; a German Physician and Botanist.] 



Cal. simple, many leaved. Pappus double; the outer 5 membranaceous scales, the inner 5 bristles. 

 K. viRGiNic.A. Ell. Glaucous: early leaves roundish-spathulate, later ones lyrate; scapes finally lODff. 

 Synon- Hyoseris virginica. Mx. Ftt/ffo— Dwarf Dandelion. 



