DIDYNAMIA ANGiOSPERMIA. 
431 
518. OBOLARIA. Gen.pl. 10-14-, 
t.O. caule simplici, foliis oblongis truncatis carnosis subtus virginica, 
purpureis, floribus axillaribus solitariis sessilibus. — 
IVilld. sp. pl. 3. p. 346, 
Icon. Pluk aim. i. 209./I 6, Maris, hist. 3. s. 12. t,l6, 
f. 23. 
In shady rocky places : Pensylvania to Virginia ; rare. 
Not above three inches high 5 flowers pale red, in a 
spike, supported by purple bracteas. 
519. OROBANGHE. Gen. pl. 104.5. 
O. caule ramoso, floribus alternis distantibus, corollis de- virginianat 
ciduis 4'dentatis. — Willd. sp pl.3.p.35\. 
Icon. Moris, hist. 3. s. 12. t. f. 9. 
Parasitic on the roots of beech-trees : Canada to Georgia. 
% . July— Sept. V. V. Flowers small, purple. This 
plant is known by the name of Cancer-root, being 
thought to be a never-failing remedy in cancerous 
ulcers. 
2. O. caule simplicissimo squamis ovali-lanceolatis imbrica- amencana» 
tis obtecto, spica terminali glabra, corollis recurvatis, 
staminibus axertifi.— PFilld. sp. pl. 3. p. 351. 
Parasitic 011 the roots of trees : Pensylvania to Carolina. 
11 . July. V. V. About a span high, of a brownish- 
yellow colour. 
3. O. scapis nudis unifloris, calyce ebracteato, corolla re- uniflora» 
curvata. — IVilld. sp. pl. 3. p. 352. 
Icon. Pink. mant. t. 348. f. 3. 
Parasitic on the roots of different plants and shrubs : Ca- 
nada to Virginia. 5/. June, July. v.v. Not above 
two or three inches high, of a tan colour 3 flowera 
pale purple. 
