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THE AMERICAN NATURALIST [Vol. XL V 



in the slightly greater attenuation of the sepal tips espe- 

 cially in the case of the hybrid 10.30 Lb. 



3. The flowers of the hybrids were scarcely distinguish- 

 able from those of Lama rckiana, the small differences in 

 the measurement of parts being no greater than might 

 be expected in any reasonably large and varied culture 

 of Lamarckiana. The chief difference with respect to 

 the flower lay in the clear green color of the ovaries of 

 the hybrids, the glands of which were not tinted red, as is 

 characteristic of all material of Lamarckiana that the 

 writer lias seen. 



4. Although the capsules were somewhat longer and 

 more pointed than in the forms of Lamarckiana grown 

 by the writer, they were not so long as in certain "long- 

 fruited races" described by De Vries, who states that the 

 fruits of Lamarckiana are highly variable and figures 

 capsules as pointed as those of my hybrids ( l)e Vries '09, 

 p. 528, et seq., Fig. 114). 



The points of difference concern chiefly the vegetative 

 portions of the plants under discussion. 



1. The rosette of the hybrids consisted of mixed forms 

 of leaves, only the younger resembling the markedly 

 crinkled leaves of Lamarckiana. 



2. The habit of the mature hybrid plants was more 

 straggling, lacking the symmetry characteristic of La- 

 marckiana. The basal leaves were not so large and were 

 but slightly crinkled; the upper leaves, especially in the 

 case of hybrid 10.30 Lb, were similar to Lamarckiana. 



3. The coloration of the stem was green above and 

 mottled red and brown below, in contrast to the green 

 stems of Lamarckiana punctate with red-tinted papillate 

 glands. Similar glands were present in the hybrids, but 

 their color (portions of 10.30 La excepted) was that of 

 the regions of the stem upon which they lay. 



The hybrids, therefore, resembled Lamarckiana as to 

 the inflorescence, floral parts, and fruits; they differed 

 chiefly in certain vegetative characters and in the colora- 

 tion of the stem. It remains to be seen through further 



