.i:'a/*- 



284 DESCRIPTIONS OF NEW SPECIES 



Tribe 11. EUPATORIACEtE. (Lessing, Decand.) 



LIATRIS. 



Liatris hrachjstachya. (Nutt.) Arkansa; also in the prairies of Missouri, 

 common. Liatris pyclinostachya? Mich. Vol. II., p. 91. 



Liatris oppositifolia (Nutt.) is a species of Eupatorium. 



Liatris virgata, (Nutt.) nearly smooth; root tuberous; stem often paniculately 

 and virgately branched; the flowers sometimes upon short, but usually on long 

 pedicels; involucrum subhemispherical; fifteen to twenty flowered ; scales oval, 

 nearly all equal and imbricate, somewhat acute or obtuse; pappus rather short, 

 slightly plumose; receptacle naked, or bracteolate. — Hab. In the pine forests of 

 Georgia, and near Newbern, N. Carolina. Very peculiar in its great tendency 

 to branching; the branches slender. Leaves linear, sublanceolate, not remark- 

 ably unequal; erect, or reflected; smooth, or somewhat ciliated. One speci- 

 men, v/hich I cultivated at Cambridge, Mass., had a bracteolate receptacle, with 

 a foliaceous scale to each floret; in this individual the leaves were reflected, 



I give the following apparently new genus of Vernoniace^, allied to Vernonia, collected by 

 the late Doctor Baldwin on some part of the Pacific coast of South America, and from its curious 

 honey-combed receptacle, I have called it 



* SYMBLOMERIA. 



Capitulum many-flowered, homogamous ; the florets tubular and deeply five-cleft, with linear 

 obtuse segments, the exterior series subpalmate. Receptaculum pitted with angular cavities like 

 a honey-comb, in which the turbinate villous achenium is almost wholly immersed, (as in Bald- 

 winia.) Involucrum hemispherical, imbricate, and somewhat squarrose, in several unequal series, 

 the scales adnate at their base. Stigmas with the branches filiform and pubescent, acuminate. 

 Pappus double, and, in several series, the outer whitish and much shorter, all paleaceously bristly. — 

 A shrub eight or ten feet high, with alternate, lanceolate, acuminate, entire, smooth leaves ; capi- 

 tuli rather large, axillary and terminal, pedicellate and corymbose (florets apparently white, judg- 

 ing by the dried specimen.) 



Symblomeria Baldwiniana. 



A branching shrub with terete somewhat cinereous puberulous branches and young shoots. 

 Leaves about three inches long, an inch to an inch and a half wide, acuminate at each end. Ca- 

 pituli a little larger than those of Vernonia noveboracensis. 



