Page 945, line 11, for Aster missouriensis var. thyrsoides (Gray) 

 Wieg. (Rhodora 30: 177. 1928.) read Aster pantotrichus var. 

 thyrsoides (Gray) Blake. (Jour. Washington Acad. Sci. 21: 327. 

 1931.) 



Page 998, line 22, for this line read 5a. Senecio aureus var. gracilis 

 (Pursh) Britt. Map 2190. This variety 



Page 1007, delete lines 8 and 9. 



Page 1012, line 10 from the bottom, for Lactuca spicata (Lam.) Hitchc. 

 read Lactuca biennis (Moench) Fern. (Rhodora 42: 300. 1940.) 



Page 1012, line 3 from the bottom, for Lactuca spicata var. integrifolia 

 (T. & G.) Britt. read Lactuca biennis f. integrifolia (T. & G.) Fern. 

 (Rhodora 42: 302. 1940.) 



Page 1019, line 28, for Linnaeana C. Chr. read disjiincta (Rupr.) 

 Morton. (Rhodora 43: 217. 1941.) 



Page 1059, line 6, for shoud read should. 



Page 1067, after line 2, interpolate as follows : 



394a. Robinia viscosa L. This species was reported for Lake 

 County by Edwin D. Hull in Amer. Botanist 41: 172. 1935. 



Page 1078, line 11, for Spermolepis pAtens (Nutt.) Robinson read 

 Spermolepis inermis (Nutt.) Mathias & Constance. (Bull. Torrey 

 Bot. Club 68: 124.1941.) 



Page 1086, line 31, at the end of this line add: but according to Epling 

 this species occurs in Brown, Crawford, and Martin Counties. 



Page 1087, line 9, from the bottom for western read southern. 



Page 1097, line 12, for amethystinus read amethystinus. 



Page 1097, line 23, add as follows: In 1940 a large colony was found by 

 Chas. M. Ek along the railroad a mile west of Goldsmith, Tipton 

 County. 



Page 1148, after line 32, interpolate as follows: 



McNair, James B. The taxonomy of poison ivy with a note on the 

 origin of the generic name. Field Mus. Nat. Hist. Publ. Bot. Ser. 4: 

 55-70. 1925. 



Page 1152, in line 2, delete the period after Club. 



