627 



Iris cont. 



I. versicolor, Thunb. See laevigata. 



I. virescens, DC. Switzerland Red. Lil. t. 925. 



7. vjrgm'ica, A. Gray. See prismatica. 



7. withruanniana, Hort. See virescens. 



I. Xiphium, L. Europe, &c. Bot. Mag. t. 686. 



" Spanish Iris." 

 I. xiphioides, Ehrh. Pyrenees. Bot. Mag. t. 687. 



"English Iris.' 1 



Isatis, Tourn. Cruciferae. 



I. glauca, Audi. Asia Minor. 



I. tinctoria, L. Europe, <fec. Eng. Bot. ed. 3, t. 161. 



"Woad." 

 I. Villarsii, Gaud. Switzerland. 



Ischarum, Blnme. See Biarum. 

 Itnardia, L. See Ludwigia. 



Isoetes, Linn. Selaginellaceae. 



I. Hystrix, Durieu. South Europe, &c. Eng. Bot. 

 ed 3, t. 1828. 



IsoUpiSi H. Br. See Scirpus. 



7. grarilix, Hort. See S. cernuus. 



Isopyrum, L. Ranunculaceae. 



I. fumarioides, L. Europe, &c. Pall. Fl. Ross. iii. 1. 1. 



I. grandinorum, Fisch. Himalaya, &c. Royle Illustr. 

 Himal. t. 11. 



I. thalictroides, L. South Europe. Jacq. Fl. Austr. 

 t. 105. 



