No. 532] GENETIC AL STUDIES ON (ENOTHEBA 227 



biennis and, in the writer's experience, are not charac- 

 teristic of Lamarckiana where the stigma lobes are usu- 

 ally expanded in the open flower and generally above or 

 about on the level with the tips of the anthers. Further- 

 more the size of the petals in the illustration of the large- 

 flowered type (Fig. 2) is no greater and indeed not so 

 great as in some forms of biennis. Both of the figures 

 show the essential characteristics of the flower of biennis 

 to which they have generally been referred in taxonomic 

 accounts. For these reasons the view of MacDougal 

 that the illustration of the large-flowered type (Fig. 2) 

 is of Lamarckiana and establishes its presence in Europe 

 previous to 1757, is to the writer not convincing. 



The second attempt to establish the presence of La- 

 marckiana in Europe previous to 1778 is the announce- 

 ment of Gates ( '10) that certain marginal notes in a copy 

 of Bauhin's "Pinax," 1623, give in Latin an accurate 

 description of this plant although differing in one or two 

 minor characters. Gates presents an outline of the 

 points which indicate to him that the description refers 

 to Lamarckiana, but the notes themselves are not pub- 

 lished. A full account is promised, in which we may 

 expect to see these Latin notes and judge of them for 

 ourselves, and comments on this announcement will be 

 reserved for the present. 



Finally we must return to the question of whether or 

 not it appears probable that (Enothera Lamarckiana is 

 at present a component of the American native flora. 

 De Vries ( '05, p. 368) refers to Lamarckiana certain her- 

 barium material at the New York Botanical Garden and 

 Missouri Botanical Garden, both collected by A. W. Chap- 

 man in Florida (1860 or earlier), and also material in the 

 Philadelphia Academy of Science collected by C. W. 

 Short at Lexington, ky. A thorough search (kacDou- 

 gal, '05, p. 6) by several botanists in the vicinity of 

 Lexington Ky., Nashville Tenn., Knoxville Tenn., and 

 Courtney Mo., in the endeavor to find living plants 

 that might be identified as Lamarckiana, was unsuccess- 



