552 THE EVENING PRIMROSES OF DIXIE LANDING, ALABAMA. 



Tracy's seed had been obtained in former years. Really pure stands 

 of Oe. grandiflora we failed to find either in the old fields or in the 

 woods along the river. Intermingled with the most frequent types 

 of Oe. grandiflora and Oe. Tracyi were numerous less abundant 

 types. This was particularly true in the old fields. It is hardly 

 probable that all of the types which occur at Dixie Landing 

 were observed by us. The following types, designated by letters 

 from a to /, were noted, and of some of them seeds were obtained. 

 Of other types, which were just coming into flower, seeds could not 

 be obtained, but it is hoped that these will be found in the collection 

 of rosettes which was sent to Washington. 



1. Types like Oe. grandiflora, i. e., types having large flowers 

 with the style longer than the stamens: (a) with green, glabrous 

 calyx segments and short capsules; (b) with green, viscid-puberulent 

 calyx segments and short capsules; (c) with red-spotted, glabrous 

 calyx segments and short fruit; (rf) with red, glabrous calyx seg- 

 ments and long capsules; {e) with red-spotted, viscid puberulent 

 calyx segments and short capsules; (/) with red-spotted glabrous 

 calyx segments and petals orange-colored on wilting (all the other 

 types were light yellow on wilting); (g) with red-spotted, glabrous 

 calyx segments and pinnatifid leaves (all the other types had the 

 leaves merely dentate or subdentate). 



2. Types like Oe. Tracyi, i. e., with flowers medium sized and 

 stamens reaching the stigmas: {h) with green calyx segments and 

 green, pilose capsules; (i) with green calyx segments and green, 

 glabrous capsules; (/) with red-spotted calyx segments and green, 

 pilose capsules; {k) with red-spotted calyx segments and pilose, 

 longitudinally red-striped capsules; (0 with red calyx segments 

 and green capsules, a beautiful form the coloration of which suggests 

 that it may be a variant of Oe. Tracyi parallel to certain of the 

 Amsterdam mutants of Oe. Lamarckiana. 



The classification of the types of Oe. grandiflora does not take 

 into consideration the pubescence of the stem, which varies widely, 

 the shape of the leaves, which is equally variable, or the mode of 

 branching, which can not be accurately judged in specimens growing 

 under the diverse conditions afforded by the habitat at Dixie Land- 

 ing. It should be noted that all of the Oenothera grandiflora types 

 had glabrous, green capsules, that none of them were at all am- 

 biguous with respect to the size and position of the floral parts, and 

 that none of them could be considered at all similar to the Oe. La- 

 marckiana of the Amsterdam cultures. A very few specimens were 



