OF NORTH AMERICA. 53 



3. JR. A. angustata R. leaves linear lanceo- 

 late sagittate. Sicily and Oreta. 



4. R. A* olitvria R. Garden Sorrel, leaves 

 oblong sagittate, upper sessile and narrow. 



5. /?. A. amplcjcicaulis R. Leaves ovate 

 sagittate sessile amplexicaule. Eastern Europe 

 all in my herbal. 



864. EKIOGONUM ANNUTJM Coll. berk annual, 

 stem simple cinereous naked above, leaves al- 

 ternate sessile oblong or cuneate acute white 

 tomentose beneath; umbels trifid, perianthes 

 pedunculate multifl. campanul. 5 dentate tomen- 

 iose. Salt R. of Arkansas probably found by 

 Nuttal, pedal and bipedal, leaves uncial, umbel 

 small branches pauciflore, with a flower in cen- 

 ter. This beautiful N, .Amer. G. is now greatly 

 increased although only one known to Michaux: 

 I shall now add 4 sp. to it 



865. ERIOGOKUM LATERIFLORUM Raf. stem 

 simple white tomentose aphylous and flocose 

 above, leaves alternate lanceolate acuto sessile, 

 flocose above, tomentose beneath : umbel trifid, 

 branches dichotome, flowers unilateral, perian- 

 the subsessile campanul. subentire 2-3ttore. 

 Plains of Missouri and Arkanzaa found by 

 Bradbury and Nuttal, anonymous in Coll. herb, 

 stem bipedal without leaves above, the white 

 wool partly flocase appearing like little warts 

 or wrinkles, leaves 2 inches long, umbel multi- 

 flore, flowers small. 



860. ERIOGONUM DIOICUM Raf. suftrutieose, 

 dioical, silky white, leaves petiolate verticillate 

 cuneate lanceolate obtuse white beneath, um- 

 bel with 6 involucres oblong sessile, perianthes 

 glomerate sessile with obtuse teeth- found by 

 Bradbury on River Platte, leaves 2 inches long, 

 flowers in a double umbel multifid. My speci- 



