ORDER LXVIII. COMPOSITE. 353 



7. V. altis'sima, (Nutt.) Stem erect, glabrous. Leaves lanceolate, 

 ferrate, slightly scabrous. Floivers in small, terminal corymbs; invo- 

 lucre small, with ovate, ciliate, appressed scales, slightly mucronate. 

 Seeds striate. — Purple. U- Aug. — Oct. Geo. Dampplaces. G — 10 

 feet V. fasciculata, Mich. 



8. V. ovalifo'lia, (T. & G.) Stem simple, pubescent. Leaves oval, 

 acute, serrate, glabrous; heads numerous, about 20-flowered ; scales 

 of the involucre ovate, appressed. Achenia a little hairy ; pappus 

 purple. — Purple. 2£. Middle Florida. 3 — 4 feet. 



Genus II.— STOKE'SIA. L'Her. 



(In honor of John Stokes.) 



Involucre leafy, imbricate. Corolla radiate. Florets of the 

 ray funnel-form, irregular, all perfect. Receptacle naked ; pap- 

 pus consisting of 4 bristles. Achenia 4-sided, glabrous. 



1. S. cya'nea, (L'Her.) Stem herbaceous, leafy. Leaves lanceolate. 

 Flowers solitary, large, ornamental ; florets all perfect. — Blue or purple. 

 If. May. Caroliua and Georgia. 



Gems III— ELEPHANTO'PUS. L. 



(From elephas, an elephant, and penis, a foot, from the shape of the leaf of some 



species.) 



Involucre 4-flowered ; florets all ligulate, perfect. Pappus 

 bristly, consisting of 5 awns. Receptacle naked. Achenia 

 hairy. 



1. E. Carolexia'nus, (Willd.) Stem leafy, erect, terete, branching 

 toward the summit, villous. Leaves oblong, attenuate at the base, 

 hairy, slightly scabrous. Flowers in sessile, terminal clusters, with 3 

 unequal cordate bracts at the base of each capitulum; involucre 9 — 10- 

 leaved, the interior longest, hairy on the outside. Corolla ligulate at 

 the summit, tubular toward the base, 4-cleft. Seed oblong. — Purple. 

 If. July — Sept. Common. 



2. E. nudicau'lis, (Ell.) Stem erect, branching toward the summit, 

 scabrous and hispid, usually purple, generally destitute of leaves ; rad- 

 ical leaves large, oval-lanceolate, serrate, scabrous ou the upper surface 

 and villous beneath ; bracts tomentose ; involucre with rigid leaves. — 

 Purple, y. Aug. — Sept. Common. E. tomentosus, L. 



Tribe II.— EUPATORIA'CE^E. 



Flowers discoid. Style divided ; branches elongated, obtuse, 

 or clavate, papillose externally toward the summit. Corolla 

 regular, 5-cleft, blue or purple, seldom white. 



Genus IV.— CCELESTI'NA. 



(From ccdestis, heavenly, in allusion to its hlue color.) 



Heads many-flowered, homogamous. Involucre cylindrical, 

 hemispherical, many-leaved, sub-imbricate. Receptacle convex. 





