All in all, the tendency
to produce ascidia increased from the beginning to the tenth leaf, and
decreased from this upward.
The European Venus' looking-glass was observed in my garden to produce
some quaternate and some quinate flowers on the same specimens. The
quinate were placed at the end of the branches, those with four petals
and sepals lower down. The peloric fox-glove shows the [368] highest
degree of metamorphy in the terminal flowers of the stem itself, the
weaker branches having but little tendency towards the formation of the
anomaly. The European pine or _Pinus sylvestris_ ordinarily has two
needles in each sheath, but trifoliolate sheaths occur on the stems and
stronger branches, where they prefer, as a rule, the upper parts of the
single annual shoots. _Camellia japonica_ is often striped in the fall
and during the winter, but when flowering in the spring it returns to
the monochromatic type.
Peloric flowers are terminal in some cases, but occur in the lower parts
of the flower-spikes in others. Some varieties of gladiolus commence on
each spike with more or less double flowers, which, higher up, are
replaced by single ones. A wide range of bulbs and perennial
garden-plants develop their varietal characters only partly when grown
from seed and flowering for the first time.
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