1910] ANDREWS—TWIN HYBRIDS 197 
The capsules are almost pressed against the stem. They are 
about 24 mm. long, somewhat pubescent, and remain as the flowers 
disappear in long rows on the spike, as in O. Lamarckiana. These 
capsules of O. biennis, according to BrirTon and Brown’s figure,’ 
seem to be differently curved and more pointed toward the top. 
Instead of the usual number of parts of the flower of O. biennis, I 
have observed some where there were three sepals, three petals, six 
stamens, and three stigmas. Deviations of a similar kind I have 
noticed in other plants.® 
The stem of Jaeta is branched, about the same height as that of O. 
biennis, and almost intermediate between the two parents as to 
stoutness and pubescence. 
The leaves are broad, bright green, and while wrinkled they are 
hardly as much so as in O. Lamarckiana. They are considerably 
more pubescent than those of O. biennis and slightly more so than 
those of O. Lamarckiana. 
The buds differ in size and form from those of the other forms. 
They are more pubescent than in O. Lamarckiana or O. biennis, 
smaller than in O. Lamarckiana, and larger than in O. biennis. In 
cross-section they are almost round. 
The hairs of the buds and other parts of the plant are distinctive 
as to size, for they are considerably longer than those of either O. 
biennis or velutina, but smaller than those of O. Lamarckiana. 
_ The lanceolate and strongly reflexed sepals are about three-fourths 
of the length of the calyx tube, and are somewhat more pubescent 
than in any of the preceding forms. 
Both the form and the size of the cells of the outer and inner epi- 
dermis of the sepals, as well as of the petals, of Jaeta are different 
from those of either of the three other forms mentioned here. 
The relative size of the stamens and style is another distinctive 
feature, for the style is somewhat higher than the stamens, being 
less pronounced than in O. Lamarckiana. Both the stamens and the 
style are much smaller than in O. Lamarckiana. The stamens about 
equal in size those of O. biennis and velutina. The anther cells 
behave differently from any of the previously described forms, in 
7 BRITTON AND BRowN, op. cit, 2:486. fig. 2579 
8 See my paper in Proc. Indiana Acad. Sci. for 1905 and 1906. 
