1918] ALLARD—NICOTIANA 177 
no. 1. The petals were 7 in number, and the calyx possessed 7 
sepals. 
ABNORMALITY NO. 3.—In this instance the double-blossom 
structure has affected not only the corolla, but also the ovaries, 
pistils, and stamens, producing complete fasciation. In size, shape, 
appearance, and number of petals, the corolla and corolla tube are 
identical with blossom no. 2: The corolla possessed 7 lobes, and 
the calyx, similar in all respects to no. 2, possessed 7 sepals. Ap- 
parently only 7 stamens are present. One of these unmistakably 
Fig. 3.—Corollas of abnormal blossoms 1, 2, and 3 removed, showing ovary and 
pistil structures; 4, ovary and pistil of normal blossom; 5, opened corolla of 3, showing 
fasciation of pistils and ovary.—T. 1561. 
has a double-anther structure. There is some indication of a third 
anther sac, although this. cannot definitely be determined from 
observation. The filament of this structure was very broad and 
much flattened throughout. The pistil structure showed a broad, 
double stigmatic surface, and a broad, much flattened style leading 
down to a double ovary structure. Although the ovaries were 
united, each ovary: appeared to possess its own walls. In other 
words, the ovary structure appeared as two closely appressed 
single ovaries. 
ABNORMALITY NO. 4.—In this instance three blossoms are 
involved in the coalescence (fig. 4). The two blossoms at the right 
a. 
