140 
CLASS III.—ENDOGYGIA, 
Stem or caudex vascular and fibrous, vessels and 
fibres in concentrical layers, surrounding a central 
pith or hollow. 
Flowers with a single ovary, connected with the 
calyx or exterior perigone. Stamina constantly in¬ 
serted on the interior perigone, which is a peripetal 
corolla. 
Bodies with a root and caudex, commonly a stem 
seldom woody , often branched , always with leaves or scales „ 
and conspicuous flowers, fruits and seeds: germination 
commonly dicotyle, isotyle , and opposite. 
478. Sambucus canadensis L. On Lake Maurepas and 
on the Taensa, Bartram. 
479. Viburnum molle Mich. 
480. Spermacoce glabra Mich. On the Mississippi. 
481. Halesia tetraptera L. On Lake Maurepas and- 
at Pointe Coupee, Bartram. 
482. Triosteum angustifolium L. 
483. Carthamus tinctorius L. Cultivated. 
484. Taraxacum, densleonis, Decandolie.—Leontodon 
taraxacum L. On the Washita, Mg. 
485. Jacobea balsamita Raf.—Senecio lyratus, Mich. 
—-Sdoba^us, Pers. Mg.—S.balsamita Wild. Pursh. 
—S. glabellus, Lam. On the Mississippi, Mg. 
486. Eupatorium altissimum Wild. On the Missis¬ 
sippi, Pursh. 
487. Rudbeckia amplexifolia Wild. In Louisiana, oi? 
the banks of the Mississippi, Mg. Pursh. 
