Orobanche Virginiana. 27 
Ess. Ch, Calix of two natural leaves. Corolla ringent. Capsule of one cell and two 
valves. Seeds numerous. A gland under the germen in front. Ency. 
Nat. Ord. Lin. Personate. 
Classis Didynamia. Ordo Angiospermia. Lin. Syst. 
OroBancne Virginiana; caule ramoso, floribus alternis distantibus, corollis deciduis 
4-dentatis. Willd. and Pursh. 
Stem branched, flowers alternate, distant; corollas deciduous, 4-toothed. 
SYNONYMA. 
Orowancne caule ramoso, floribus distantibus. Gron. 
O. minor Virginiana lignosior, &c. Morris. 
Ersracvs Americanus. Nutt. 
Errracus Virginianus. Bart. Comp. Fl. Ph. 
PHARM. 
Ornovancu. Virg. Radix et Herba. 
Tue Cancer-root is a very singular, handsome, and interest- 
ing parasitic plant. It belongs to a genus which is the ogepayx» 
of the Greeks ; so named from cgsges, a vetch, and «7x, to strangle, 
or suffocate, because the species of the genus designated by this 
name were supposed to starve, or render barren, the different plants 
on which they grow. The name of Broom-rape, by which all the 
species of the genus are designated in England, was given in conse- 
