Page 504, line 4, for Descurainia brachycarpa (Richardson) O. E. 

 Schulz* read Descurainia pinnata (Walt.) Britt. var. brachy- 

 carpa (Richardson) Fern. (Rhodora 42: 266. 1940.) 



Page 560, after line 9 at the bottom, interpolate: 6a. Rubus hispidus 

 var. obovalis (Michx.) Fern. (Rhodora 42: 281. 1940.) Two speci- 

 mens are cited from Indiana. 



Page 560, line 9 from the bottom, for 6a. Rubus hispidus f. pleniflorus 

 Nieuwland. (Amer. Midland Nat. 4: 69. 1915.) read 6b. Rubus 

 signatus Bailey. (Gentes Herbarum 5: 92-96. 1941.) Rubus hispidus 

 f . pleniflorus Nieuwland now becomes a synonym. 



Page 571, line 3 from the bottom, for petals read sepals. 



Page 572, line 2, for petals read sepals. 



Page 592, after line 18, interpolate : This hybrid has been studied by 

 Larissey and named X Baptisia Deamii Larissey. (Ann. Missouri 

 Bot. Gard. 27: 188. 1940.) 



Page 605, line 15 from the bottom, for segments fewer than 3 read 

 segments 1-3. 



Page 624, line 13, for 4. G. Bicknellii read 4. G. nemorale var. Bicknellii. 



Page 625, line 6, for Geranium Bicknellii Britt. read Geranium 

 nemorale Suksd. var. Bicknellii (Britt.) Fern. (Rhodora 43:35. 

 1941.) 



Page 632, line 4 from the bottom, for SIMARUBIACEAE read SIMA- 

 RUBACEAE. 



Page 634, line 15 from the bottom, for Polygala polygama Walt, read 

 Polygala polygama var. obtusata Chodat. (Rhodora 42: 458-459. 

 1940.) 



Page 647, line 3 from the bottom, for prosperpinacoides read proser- 

 pinacoides. 



Page 660, in title to map 1375, for L'Heer read L'Her. 



Page 663, in last line, delete period and continue on the next page. 



Page 664, line 3 from the bottom, for 664 read 429. 



Page 704, line 4, for mm read cm. 



