DIDYNAMIA ANGIOSPEKMIA. 



431 



5 IS. OBOLARIA. Gen.pl. 1044. 



O. caule simplici, foliis oblongis truncatis carnosis subtus 



purpureis, floribus axillaribus soHtariis sessilibus. — 



irdld. sft.pl.S.p. 340. 

 Icon. Pluk abn. t. 'IQ^.j. Q. Moris, hist. 3. s. 12. t.l6. 



f. 23, 

 In shady rocky plncfts : Pensylvania to Virginia; rare. 



Not above thre- inches high ; flowers pale red, in a 



spike, supported by purple bracteas. 



virginica. 



519. OROBA.NCHE, Gen. pi. \0i5. 



1. O. caule ramoso, floribus alternis distantibus, corollis de- 



ciduis 4 denratis. — WUld. sp pi. 3. p. 351. 



Icon. Moris, hist. 3. s. 12 t. 16/ (J. 



Parasitic on the roots of beech-trees : Canada to Georgia. 

 "2/ . 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- 



tis obtecio, spica terminali glabra, corollis recurvatis, 

 staminibus exertis, — IVilld.sp pi. 3. />. 351. 

 Parasitic on the roots of trees : Pensylvania to Carolina. 

 1/ , July. V. V, About a span high, of a brownish- 

 yellow colour. 



3. O. scapis nudis unifloris, calyce ebractealo, corolla re- 



curvata. — IVilld. sp. pi. 3. p. 352. 



Icon. Pluk. mant. t. 348. /. 3. 



Parasitic on the roots of different plants and shrubs : Ca- 

 nada to Virginia. 2/ , June, July. v. v. Not above 

 two or three inches high, of a tan colour 3 flower? 

 pale purple. 



virstniana. 



amencana. 



